[2100] | 1 | /* -*- mode: c++; c-basic-offset: 4; indent-tabs-mode: nil -*- */ |
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| 2 | /* |
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[3177] | 3 | * Copyright (C) 2004-2012 HUBzero Foundation, LLC |
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[2100] | 4 | * |
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| 5 | * Author: Leif Delgass <ldelgass@purdue.edu> |
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| 6 | */ |
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| 7 | |
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| 8 | #include <cstdio> |
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| 9 | #include <cstring> |
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| 10 | #include <cstdlib> |
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[2573] | 11 | #include <cerrno> |
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[2100] | 12 | #include <unistd.h> |
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| 13 | #include <signal.h> |
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[3330] | 14 | #include <sys/types.h> |
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| 15 | #include <sys/stat.h> |
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| 16 | #include <fcntl.h> |
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[2260] | 17 | #include <sys/time.h> |
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[3330] | 18 | #include <sys/times.h> |
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[2260] | 19 | |
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[2573] | 20 | #include <string> |
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| 21 | #include <sstream> |
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| 22 | |
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[3330] | 23 | #include <tcl.h> |
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| 24 | |
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[3818] | 25 | #include <vtksys/SystemInformation.hxx> |
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| 26 | |
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[2100] | 27 | #include "Trace.h" |
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[2573] | 28 | #include "ReadBuffer.h" |
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[3621] | 29 | #include "RenderServer.h" |
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| 30 | #include "RendererCmd.h" |
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| 31 | #include "Renderer.h" |
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[2100] | 32 | #include "PPMWriter.h" |
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| 33 | #include "TGAWriter.h" |
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[2573] | 34 | #ifdef USE_THREADS |
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| 35 | #include <pthread.h> |
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| 36 | #include "ResponseQueue.h" |
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| 37 | #endif |
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[3383] | 38 | #include <md5.h> |
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[2100] | 39 | |
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[3615] | 40 | using namespace VtkVis; |
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[2100] | 41 | |
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[3615] | 42 | Stats VtkVis::g_stats; |
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[3330] | 43 | |
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[3615] | 44 | int VtkVis::g_statsFile = -1; ///< Stats output file descriptor. |
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[4111] | 45 | int VtkVis::g_fdIn = STDIN_FILENO; ///< Input file descriptor |
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| 46 | int VtkVis::g_fdOut = STDOUT_FILENO; ///< Output file descriptor |
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[4105] | 47 | FILE *VtkVis::g_fOut = NULL; ///< Output file handle |
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[3615] | 48 | FILE *VtkVis::g_fLog = NULL; ///< Trace logging file handle |
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| 49 | Renderer *VtkVis::g_renderer = NULL; ///< Main render worker |
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| 50 | ReadBuffer *VtkVis::g_inBufPtr = NULL; ///< Socket read buffer |
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[2100] | 51 | |
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[2573] | 52 | #ifdef USE_THREADS |
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[2100] | 53 | static void |
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[2573] | 54 | queueFrame(ResponseQueue *queue, vtkUnsignedCharArray *imgData) |
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| 55 | { |
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| 56 | #ifdef DEBUG |
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| 57 | if (g_renderer->getCameraMode() == Renderer::IMAGE) { |
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| 58 | double xywh[4]; |
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| 59 | g_renderer->getScreenWorldCoords(xywh); |
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| 60 | TRACE("Image bbox: %g %g %g %g", |
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| 61 | xywh[0], |
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| 62 | (xywh[1] + xywh[3]), |
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| 63 | (xywh[0] + xywh[2]), |
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| 64 | xywh[1]); |
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| 65 | } |
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| 66 | |
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| 67 | #ifdef RENDER_TARGA |
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| 68 | writeTGAFile("/tmp/frame.tga", |
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| 69 | imgData->GetPointer(0), |
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| 70 | g_renderer->getWindowWidth(), |
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| 71 | g_renderer->getWindowHeight(), |
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| 72 | TARGA_BYTES_PER_PIXEL); |
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| 73 | #else |
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| 74 | writeTGAFile("/tmp/frame.tga", |
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| 75 | imgData->GetPointer(0), |
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| 76 | g_renderer->getWindowWidth(), |
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| 77 | g_renderer->getWindowHeight(), |
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| 78 | TARGA_BYTES_PER_PIXEL, |
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| 79 | true); |
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| 80 | #endif /*RENDER_TARGA*/ |
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| 81 | |
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| 82 | #else |
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| 83 | if (g_renderer->getCameraMode() == Renderer::IMAGE) { |
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| 84 | double xywh[4]; |
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| 85 | g_renderer->getCameraZoomRegion(xywh); |
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| 86 | std::ostringstream oss; |
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| 87 | oss.precision(12); |
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| 88 | // Send upper left and lower right corners as bbox |
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| 89 | oss << "nv>image -type image -bbox {" |
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| 90 | << std::scientific |
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| 91 | << xywh[0] << " " |
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| 92 | << xywh[1] << " " |
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| 93 | << xywh[2] << " " |
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| 94 | << xywh[3] << "} -bytes"; |
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| 95 | |
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| 96 | #ifdef RENDER_TARGA |
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| 97 | queueTGA(queue, oss.str().c_str(), |
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| 98 | imgData->GetPointer(0), |
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| 99 | g_renderer->getWindowWidth(), |
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| 100 | g_renderer->getWindowHeight(), |
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| 101 | TARGA_BYTES_PER_PIXEL); |
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| 102 | #else |
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| 103 | queuePPM(queue, oss.str().c_str(), |
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| 104 | imgData->GetPointer(0), |
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| 105 | g_renderer->getWindowWidth(), |
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| 106 | g_renderer->getWindowHeight()); |
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| 107 | #endif /*RENDER_TARGA*/ |
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| 108 | } else { |
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| 109 | #ifdef RENDER_TARGA |
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| 110 | queueTGA(queue, "nv>image -type image -bytes", |
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| 111 | imgData->GetPointer(0), |
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| 112 | g_renderer->getWindowWidth(), |
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| 113 | g_renderer->getWindowHeight(), |
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| 114 | TARGA_BYTES_PER_PIXEL); |
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| 115 | #else |
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| 116 | queuePPM(queue, "nv>image -type image -bytes", |
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| 117 | imgData->GetPointer(0), |
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| 118 | g_renderer->getWindowWidth(), |
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| 119 | g_renderer->getWindowHeight()); |
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| 120 | #endif /*RENDER_TARGA*/ |
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| 121 | } |
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| 122 | #endif /*DEBUG*/ |
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| 123 | } |
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| 124 | |
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| 125 | #else |
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| 126 | |
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| 127 | static void |
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[2100] | 128 | writeFrame(int fd, vtkUnsignedCharArray *imgData) |
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| 129 | { |
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| 130 | #ifdef DEBUG |
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[2194] | 131 | if (g_renderer->getCameraMode() == Renderer::IMAGE) { |
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| 132 | double xywh[4]; |
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| 133 | g_renderer->getScreenWorldCoords(xywh); |
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| 134 | TRACE("Image bbox: %g %g %g %g", |
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| 135 | xywh[0], |
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| 136 | (xywh[1] + xywh[3]), |
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| 137 | (xywh[0] + xywh[2]), |
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| 138 | xywh[1]); |
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| 139 | } |
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| 140 | |
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[2260] | 141 | #ifdef RENDER_TARGA |
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[2100] | 142 | writeTGAFile("/tmp/frame.tga", |
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| 143 | imgData->GetPointer(0), |
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| 144 | g_renderer->getWindowWidth(), |
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[2260] | 145 | g_renderer->getWindowHeight(), |
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| 146 | TARGA_BYTES_PER_PIXEL); |
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[2100] | 147 | #else |
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[2260] | 148 | writeTGAFile("/tmp/frame.tga", |
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| 149 | imgData->GetPointer(0), |
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| 150 | g_renderer->getWindowWidth(), |
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| 151 | g_renderer->getWindowHeight(), |
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| 152 | TARGA_BYTES_PER_PIXEL, |
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| 153 | true); |
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[2573] | 154 | #endif /*RENDER_TARGA*/ |
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[2260] | 155 | |
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| 156 | #else |
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[2194] | 157 | if (g_renderer->getCameraMode() == Renderer::IMAGE) { |
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| 158 | double xywh[4]; |
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[2423] | 159 | g_renderer->getCameraZoomRegion(xywh); |
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[2194] | 160 | std::ostringstream oss; |
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| 161 | oss.precision(12); |
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| 162 | // Send upper left and lower right corners as bbox |
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| 163 | oss << "nv>image -type image -bbox {" |
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| 164 | << std::scientific |
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| 165 | << xywh[0] << " " |
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[2423] | 166 | << xywh[1] << " " |
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| 167 | << xywh[2] << " " |
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| 168 | << xywh[3] << "} -bytes"; |
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[2194] | 169 | |
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[2260] | 170 | #ifdef RENDER_TARGA |
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| 171 | writeTGA(fd, oss.str().c_str(), |
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| 172 | imgData->GetPointer(0), |
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| 173 | g_renderer->getWindowWidth(), |
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| 174 | g_renderer->getWindowHeight(), |
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| 175 | TARGA_BYTES_PER_PIXEL); |
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| 176 | #else |
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[2194] | 177 | writePPM(fd, oss.str().c_str(), |
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| 178 | imgData->GetPointer(0), |
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| 179 | g_renderer->getWindowWidth(), |
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| 180 | g_renderer->getWindowHeight()); |
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[2573] | 181 | #endif /*RENDER_TARGA*/ |
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[2194] | 182 | } else { |
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[2260] | 183 | #ifdef RENDER_TARGA |
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| 184 | writeTGA(fd, "nv>image -type image -bytes", |
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| 185 | imgData->GetPointer(0), |
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| 186 | g_renderer->getWindowWidth(), |
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| 187 | g_renderer->getWindowHeight(), |
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| 188 | TARGA_BYTES_PER_PIXEL); |
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| 189 | #else |
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[2194] | 190 | writePPM(fd, "nv>image -type image -bytes", |
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| 191 | imgData->GetPointer(0), |
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| 192 | g_renderer->getWindowWidth(), |
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| 193 | g_renderer->getWindowHeight()); |
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[2573] | 194 | #endif /*RENDER_TARGA*/ |
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[2194] | 195 | } |
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[2573] | 196 | #endif /*DEBUG*/ |
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[2100] | 197 | } |
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[2573] | 198 | #endif /*USE_THREADS*/ |
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[2100] | 199 | |
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[3465] | 200 | static int |
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| 201 | sendAck(ClientData clientData, int fdOut) |
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[3451] | 202 | { |
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| 203 | std::ostringstream oss; |
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| 204 | oss << "nv>ok -token " << g_stats.nCommands << "\n"; |
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[4792] | 205 | std::string str = oss.str(); |
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| 206 | int nBytes = str.length(); |
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[3382] | 207 | |
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[3451] | 208 | TRACE("Sending OK for commands through %lu", g_stats.nCommands); |
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| 209 | #ifdef USE_THREADS |
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[4792] | 210 | queueResponse(clientData, str.c_str(), nBytes, Response::VOLATILE, Response::OK); |
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[3451] | 211 | #else |
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[4792] | 212 | if (write(fdOut, str.c_str(), nBytes) < 0) { |
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[3451] | 213 | ERROR("write failed: %s", strerror(errno)); |
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| 214 | return -1; |
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| 215 | } |
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| 216 | #endif |
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| 217 | return 0; |
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| 218 | } |
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| 219 | |
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[3382] | 220 | int |
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[4792] | 221 | VtkVis::getStatsFile(Tcl_Obj *objPtr) |
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[3330] | 222 | { |
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[3382] | 223 | char fileName[33]; |
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[4792] | 224 | char pidstr[200]; |
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[3382] | 225 | md5_state_t state; |
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| 226 | md5_byte_t digest[16]; |
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| 227 | char *string; |
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| 228 | int length; |
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[3330] | 229 | |
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[3394] | 230 | if ((objPtr == NULL) || (g_statsFile >= 0)) { |
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[3382] | 231 | return g_statsFile; |
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| 232 | } |
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[4792] | 233 | /* By itself the client's key/value pairs aren't unique. Add in the |
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| 234 | * process id of this render server. */ |
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| 235 | sprintf(pidstr, "%ld", (long)g_stats.pid); |
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| 236 | |
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| 237 | /* Create an md5 hash of the key/value pairs and use it as the file name. */ |
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[3382] | 238 | string = Tcl_GetStringFromObj(objPtr, &length); |
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| 239 | md5_init(&state); |
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[4792] | 240 | md5_append(&state, (const md5_byte_t *)string, strlen(string)); |
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| 241 | md5_append(&state, (const md5_byte_t *)pidstr, strlen(pidstr)); |
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[3382] | 242 | md5_finish(&state, digest); |
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[4792] | 243 | for (int i = 0; i < 16; i++) { |
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[3382] | 244 | sprintf(fileName + i * 2, "%02x", digest[i]); |
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| 245 | } |
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[4366] | 246 | std::ostringstream oss; |
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| 247 | oss << STATSDIR << "/" << fileName; |
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[4615] | 248 | std::string pathStr = oss.str(); |
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[3330] | 249 | |
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[4615] | 250 | g_statsFile = open(pathStr.c_str(), O_EXCL | O_CREAT | O_WRONLY, 0600); |
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[3388] | 251 | if (g_statsFile < 0) { |
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[4615] | 252 | ERROR("can't open \"%s\": %s", pathStr.c_str(), strerror(errno)); |
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[3382] | 253 | return -1; |
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[3330] | 254 | } |
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[3382] | 255 | return g_statsFile; |
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[3330] | 256 | } |
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| 257 | |
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[3382] | 258 | int |
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[3615] | 259 | VtkVis::writeToStatsFile(int f, const char *s, size_t length) |
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[3330] | 260 | { |
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[3382] | 261 | if (f >= 0) { |
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| 262 | ssize_t numWritten; |
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[3330] | 263 | |
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[3382] | 264 | numWritten = write(f, s, length); |
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| 265 | if (numWritten == (ssize_t)length) { |
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| 266 | close(dup(f)); |
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| 267 | } |
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[3330] | 268 | } |
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| 269 | return 0; |
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| 270 | } |
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| 271 | |
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| 272 | static int |
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| 273 | serverStats(int code) |
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| 274 | { |
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| 275 | double start, finish; |
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| 276 | char buf[BUFSIZ]; |
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| 277 | Tcl_DString ds; |
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| 278 | int result; |
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[3389] | 279 | int f; |
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[3330] | 280 | |
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| 281 | { |
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| 282 | struct timeval tv; |
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| 283 | |
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| 284 | /* Get ending time. */ |
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| 285 | gettimeofday(&tv, NULL); |
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| 286 | finish = CVT2SECS(tv); |
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| 287 | tv = g_stats.start; |
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| 288 | start = CVT2SECS(tv); |
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| 289 | } |
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| 290 | /* |
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| 291 | * Session information: |
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| 292 | * - Name of render server |
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| 293 | * - Process ID |
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| 294 | * - Hostname where server is running |
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| 295 | * - Start date of session |
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| 296 | * - Start date of session in seconds |
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| 297 | * - Number of data sets loaded from client |
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| 298 | * - Number of data bytes total loaded from client |
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| 299 | * - Number of frames returned |
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| 300 | * - Number of bytes total returned (in frames) |
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| 301 | * - Number of commands received |
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| 302 | * - Total elapsed time of all commands |
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| 303 | * - Total elapsed time of session |
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| 304 | * - Exit code of vizserver |
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| 305 | * - User time |
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| 306 | * - System time |
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| 307 | * - User time of children |
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| 308 | * - System time of children |
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| 309 | */ |
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| 310 | |
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| 311 | Tcl_DStringInit(&ds); |
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| 312 | |
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| 313 | Tcl_DStringAppendElement(&ds, "render_stop"); |
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| 314 | /* renderer */ |
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| 315 | Tcl_DStringAppendElement(&ds, "renderer"); |
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| 316 | Tcl_DStringAppendElement(&ds, "vtkvis"); |
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| 317 | /* pid */ |
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| 318 | Tcl_DStringAppendElement(&ds, "pid"); |
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[4792] | 319 | sprintf(buf, "%ld", (long)g_stats.pid); |
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[3330] | 320 | Tcl_DStringAppendElement(&ds, buf); |
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| 321 | /* host */ |
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| 322 | Tcl_DStringAppendElement(&ds, "host"); |
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| 323 | gethostname(buf, BUFSIZ-1); |
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| 324 | buf[BUFSIZ-1] = '\0'; |
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| 325 | Tcl_DStringAppendElement(&ds, buf); |
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| 326 | /* date */ |
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| 327 | Tcl_DStringAppendElement(&ds, "date"); |
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| 328 | strcpy(buf, ctime(&g_stats.start.tv_sec)); |
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| 329 | buf[strlen(buf) - 1] = '\0'; |
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| 330 | Tcl_DStringAppendElement(&ds, buf); |
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| 331 | /* date_secs */ |
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| 332 | Tcl_DStringAppendElement(&ds, "date_secs"); |
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| 333 | sprintf(buf, "%ld", g_stats.start.tv_sec); |
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| 334 | Tcl_DStringAppendElement(&ds, buf); |
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| 335 | /* num_data_sets */ |
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| 336 | Tcl_DStringAppendElement(&ds, "num_data_sets"); |
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[4806] | 337 | sprintf(buf, "%lu", (unsigned long)g_stats.nDataSets); |
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[3330] | 338 | Tcl_DStringAppendElement(&ds, buf); |
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| 339 | /* data_set_bytes */ |
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| 340 | Tcl_DStringAppendElement(&ds, "data_set_bytes"); |
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[4806] | 341 | sprintf(buf, "%lu", (unsigned long)g_stats.nDataBytes); |
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[3330] | 342 | Tcl_DStringAppendElement(&ds, buf); |
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| 343 | /* num_frames */ |
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| 344 | Tcl_DStringAppendElement(&ds, "num_frames"); |
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[4806] | 345 | sprintf(buf, "%lu", (unsigned long)g_stats.nFrames); |
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[3330] | 346 | Tcl_DStringAppendElement(&ds, buf); |
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| 347 | /* frame_bytes */ |
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| 348 | Tcl_DStringAppendElement(&ds, "frame_bytes"); |
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[4806] | 349 | sprintf(buf, "%lu", (unsigned long)g_stats.nFrameBytes); |
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[3330] | 350 | Tcl_DStringAppendElement(&ds, buf); |
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| 351 | /* num_commands */ |
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| 352 | Tcl_DStringAppendElement(&ds, "num_commands"); |
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[4806] | 353 | sprintf(buf, "%lu", (unsigned long)g_stats.nCommands); |
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[3330] | 354 | Tcl_DStringAppendElement(&ds, buf); |
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| 355 | /* cmd_time */ |
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| 356 | Tcl_DStringAppendElement(&ds, "cmd_time"); |
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| 357 | sprintf(buf, "%g", g_stats.cmdTime); |
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| 358 | Tcl_DStringAppendElement(&ds, buf); |
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| 359 | /* session_time */ |
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| 360 | Tcl_DStringAppendElement(&ds, "session_time"); |
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| 361 | sprintf(buf, "%g", finish - start); |
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| 362 | Tcl_DStringAppendElement(&ds, buf); |
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| 363 | /* status */ |
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| 364 | Tcl_DStringAppendElement(&ds, "status"); |
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| 365 | sprintf(buf, "%d", code); |
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| 366 | Tcl_DStringAppendElement(&ds, buf); |
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| 367 | { |
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| 368 | long clocksPerSec = sysconf(_SC_CLK_TCK); |
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| 369 | double clockRes = 1.0 / clocksPerSec; |
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| 370 | struct tms tms; |
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| 371 | |
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| 372 | memset(&tms, 0, sizeof(tms)); |
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| 373 | times(&tms); |
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| 374 | /* utime */ |
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| 375 | Tcl_DStringAppendElement(&ds, "utime"); |
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| 376 | sprintf(buf, "%g", tms.tms_utime * clockRes); |
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| 377 | Tcl_DStringAppendElement(&ds, buf); |
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| 378 | /* stime */ |
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| 379 | Tcl_DStringAppendElement(&ds, "stime"); |
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| 380 | sprintf(buf, "%g", tms.tms_stime * clockRes); |
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| 381 | Tcl_DStringAppendElement(&ds, buf); |
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| 382 | /* cutime */ |
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| 383 | Tcl_DStringAppendElement(&ds, "cutime"); |
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| 384 | sprintf(buf, "%g", tms.tms_cutime * clockRes); |
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| 385 | Tcl_DStringAppendElement(&ds, buf); |
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| 386 | /* cstime */ |
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| 387 | Tcl_DStringAppendElement(&ds, "cstime"); |
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| 388 | sprintf(buf, "%g", tms.tms_cstime * clockRes); |
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| 389 | Tcl_DStringAppendElement(&ds, buf); |
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| 390 | } |
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| 391 | Tcl_DStringAppend(&ds, "\n", -1); |
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[4792] | 392 | f = getStatsFile(NULL); |
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[3387] | 393 | result = writeToStatsFile(f, Tcl_DStringValue(&ds), |
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[3330] | 394 | Tcl_DStringLength(&ds)); |
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[3382] | 395 | close(f); |
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[3330] | 396 | Tcl_DStringFree(&ds); |
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| 397 | return result; |
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| 398 | } |
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| 399 | |
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| 400 | static void |
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[2100] | 401 | initService() |
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| 402 | { |
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[4111] | 403 | // Create a stream associated with the output file descriptor |
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[4105] | 404 | g_fOut = fdopen(g_fdOut, "w"); |
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[4111] | 405 | // If running without a socket, use stdout for debugging |
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[4105] | 406 | if (g_fOut == NULL && g_fdOut != STDOUT_FILENO) { |
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| 407 | g_fdOut = STDOUT_FILENO; |
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[4108] | 408 | g_fOut = stdout; |
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[4105] | 409 | } |
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[3600] | 410 | |
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[2100] | 411 | const char *user = getenv("USER"); |
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| 412 | char *logName = NULL; |
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| 413 | int logNameLen = 0; |
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| 414 | |
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| 415 | if (user == NULL) { |
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| 416 | logNameLen = 19+1; |
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| 417 | logName = (char *)calloc(logNameLen, sizeof(char)); |
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| 418 | strncpy(logName, "/tmp/vtkvis_log.txt", logNameLen); |
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| 419 | } |
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| 420 | else { |
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| 421 | logNameLen = 16+strlen(user)+4+1; |
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| 422 | logName = (char *)calloc(logNameLen, sizeof(char)); |
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| 423 | strncpy(logName, "/tmp/vtkvis_log_", logNameLen); |
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| 424 | strncat(logName, user, strlen(user)); |
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| 425 | strncat(logName, ".txt", 4); |
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| 426 | } |
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| 427 | |
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| 428 | // open log and map stderr to log file |
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| 429 | g_fLog = fopen(logName, "w"); |
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| 430 | dup2(fileno(g_fLog), STDERR_FILENO); |
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[4111] | 431 | // If we are writing to socket, map stdout to log |
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| 432 | if (g_fdOut != STDOUT_FILENO) { |
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| 433 | dup2(fileno(g_fLog), STDOUT_FILENO); |
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| 434 | } |
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[2100] | 435 | |
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[4111] | 436 | fflush(stdout); |
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| 437 | |
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[2100] | 438 | // clean up malloc'd memory |
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| 439 | if (logName != NULL) { |
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| 440 | free(logName); |
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| 441 | } |
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| 442 | } |
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| 443 | |
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| 444 | static void |
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| 445 | exitService() |
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| 446 | { |
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[3330] | 447 | serverStats(0); |
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| 448 | |
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[2100] | 449 | // close log file |
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| 450 | if (g_fLog != NULL) { |
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| 451 | fclose(g_fLog); |
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| 452 | g_fLog = NULL; |
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| 453 | } |
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| 454 | } |
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| 455 | |
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[2573] | 456 | #ifdef USE_THREADS |
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| 457 | |
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| 458 | static void * |
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| 459 | writerThread(void *clientData) |
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| 460 | { |
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| 461 | ResponseQueue *queue = (ResponseQueue *)clientData; |
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| 462 | |
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| 463 | TRACE("Starting writer thread"); |
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| 464 | for (;;) { |
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[3330] | 465 | Response *response = queue->dequeue(); |
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[2578] | 466 | if (response == NULL) |
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| 467 | continue; |
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[3994] | 468 | if (fwrite(response->message(), sizeof(unsigned char), response->length(), |
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[2573] | 469 | g_fOut) != response->length()) { |
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| 470 | ERROR("short write while trying to write %ld bytes", |
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| 471 | response->length()); |
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| 472 | } |
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| 473 | fflush(g_fOut); |
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[3330] | 474 | TRACE("Wrote response of type %d", response->type()); |
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[2573] | 475 | delete response; |
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| 476 | if (feof(g_fOut)) |
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| 477 | break; |
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| 478 | } |
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| 479 | return NULL; |
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| 480 | } |
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| 481 | |
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| 482 | #endif /*USE_THREADS*/ |
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| 483 | |
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[2100] | 484 | int |
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| 485 | main(int argc, char *argv[]) |
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| 486 | { |
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| 487 | // Ignore SIGPIPE. **Is this needed? ** |
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| 488 | signal(SIGPIPE, SIG_IGN); |
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[4107] | 489 | |
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| 490 | while (1) { |
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| 491 | int c = getopt(argc, argv, "i:o:"); |
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| 492 | if (c == -1) { |
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| 493 | break; |
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| 494 | } |
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| 495 | switch (c) { |
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| 496 | case 'i': { |
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| 497 | int fd = atoi(optarg); |
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| 498 | if (fd >=0 && fd < 5) { |
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| 499 | g_fdIn = fd; |
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| 500 | } |
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| 501 | } |
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| 502 | break; |
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| 503 | case 'o': { |
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| 504 | int fd = atoi(optarg); |
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| 505 | if (fd >=0 && fd < 5) { |
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| 506 | g_fdOut = fd; |
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| 507 | } |
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| 508 | } |
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| 509 | break; |
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| 510 | case '?': |
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| 511 | break; |
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| 512 | default: |
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| 513 | return 1; |
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| 514 | } |
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| 515 | } |
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| 516 | |
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[2100] | 517 | initService(); |
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[2573] | 518 | initLog(); |
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[2100] | 519 | |
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[3330] | 520 | memset(&g_stats, 0, sizeof(g_stats)); |
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[4792] | 521 | g_stats.pid = getpid(); |
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[3330] | 522 | gettimeofday(&g_stats.start, NULL); |
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| 523 | |
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[2100] | 524 | TRACE("Starting VTKVis Server"); |
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| 525 | |
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[4107] | 526 | // Sanity check: log descriptor can't be used for client IO |
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| 527 | if (fileno(g_fLog) == g_fdIn) { |
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| 528 | ERROR("Invalid input file descriptor"); |
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| 529 | return 1; |
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| 530 | } |
---|
| 531 | if (fileno(g_fLog) == g_fdOut) { |
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| 532 | ERROR("Invalid output file descriptor"); |
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| 533 | return 1; |
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| 534 | } |
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| 535 | TRACE("File descriptors: in %d out %d log %d", g_fdIn, g_fdOut, fileno(g_fLog)); |
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| 536 | |
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[3818] | 537 | #ifdef WANT_TRACE |
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| 538 | vtksys::SystemInformation::SetStackTraceOnError(1); |
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| 539 | #endif |
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| 540 | |
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[2372] | 541 | /* This synchronizes the client with the server, so that the client |
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| 542 | * doesn't start writing commands before the server is ready. It could |
---|
| 543 | * also be used to supply information about the server (version, memory |
---|
| 544 | * size, etc). */ |
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[3615] | 545 | fprintf(g_fOut, "VtkVis %s (build %s)\n", VTKVIS_VERSION_STRING, SVN_VERSION); |
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[2573] | 546 | fflush(g_fOut); |
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[2372] | 547 | |
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[2100] | 548 | g_renderer = new Renderer(); |
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[2573] | 549 | g_inBufPtr = new ReadBuffer(g_fdIn, 1<<12); |
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[2100] | 550 | |
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[2573] | 551 | Tcl_Interp *interp = Tcl_CreateInterp(); |
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[3600] | 552 | ClientData clientData = NULL; |
---|
[2573] | 553 | #ifdef USE_THREADS |
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[3615] | 554 | ResponseQueue *queue = new ResponseQueue(); |
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[3600] | 555 | clientData = (ClientData)queue; |
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| 556 | initTcl(interp, clientData); |
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[2100] | 557 | |
---|
[3600] | 558 | pthread_t writerThreadId; |
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[2573] | 559 | if (pthread_create(&writerThreadId, NULL, &writerThread, queue) < 0) { |
---|
| 560 | ERROR("Can't create writer thread: %s", strerror(errno)); |
---|
| 561 | } |
---|
| 562 | #else |
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[3600] | 563 | initTcl(interp, clientData); |
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| 564 | #endif |
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[2573] | 565 | |
---|
| 566 | vtkSmartPointer<vtkUnsignedCharArray> imgData = |
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| 567 | vtkSmartPointer<vtkUnsignedCharArray>::New(); |
---|
[3600] | 568 | |
---|
| 569 | // Start main server loop |
---|
[2573] | 570 | for (;;) { |
---|
[3600] | 571 | if (processCommands(interp, clientData, g_inBufPtr, g_fdOut) < 0) |
---|
[2100] | 572 | break; |
---|
| 573 | |
---|
| 574 | if (g_renderer->render()) { |
---|
| 575 | TRACE("Rendering new frame"); |
---|
| 576 | g_renderer->getRenderedFrame(imgData); |
---|
[3600] | 577 | #ifdef USE_THREADS |
---|
| 578 | queueFrame(queue, imgData); |
---|
| 579 | #else |
---|
[2100] | 580 | writeFrame(g_fdOut, imgData); |
---|
[3600] | 581 | #endif |
---|
[3330] | 582 | g_stats.nFrames++; |
---|
| 583 | g_stats.nFrameBytes += imgData->GetDataSize() * imgData->GetDataTypeSize(); |
---|
[2100] | 584 | } else { |
---|
| 585 | TRACE("No render required"); |
---|
[3600] | 586 | sendAck(clientData, g_fdOut); |
---|
[2100] | 587 | } |
---|
| 588 | |
---|
[2573] | 589 | if (g_inBufPtr->status() == ReadBuffer::ENDFILE) |
---|
[2100] | 590 | break; |
---|
| 591 | } |
---|
[3600] | 592 | #ifdef USE_THREADS |
---|
| 593 | // Writer thread is probably blocked on sem_wait, so cancel instead |
---|
| 594 | // of joining |
---|
| 595 | if (pthread_cancel(writerThreadId) < 0) { |
---|
| 596 | ERROR("Can't cancel writer thread: %s", strerror(errno)); |
---|
| 597 | } else { |
---|
| 598 | TRACE("Cancelled writer thread"); |
---|
| 599 | } |
---|
| 600 | |
---|
| 601 | TRACE("Deleting ResponseQueue"); |
---|
| 602 | delete queue; |
---|
| 603 | queue = NULL; |
---|
[2573] | 604 | #endif |
---|
[2100] | 605 | |
---|
[2573] | 606 | TRACE("Stopping Tcl interpreter"); |
---|
[2278] | 607 | exitTcl(interp); |
---|
| 608 | interp = NULL; |
---|
| 609 | |
---|
[2573] | 610 | TRACE("Deleting ReadBuffer"); |
---|
| 611 | delete g_inBufPtr; |
---|
| 612 | g_inBufPtr = NULL; |
---|
| 613 | |
---|
| 614 | TRACE("Deleting renderer"); |
---|
[2100] | 615 | delete g_renderer; |
---|
[2278] | 616 | g_renderer = NULL; |
---|
[2100] | 617 | |
---|
| 618 | TRACE("Exiting VTKVis Server"); |
---|
| 619 | |
---|
[2573] | 620 | closeLog(); |
---|
[2100] | 621 | exitService(); |
---|
| 622 | |
---|
[2573] | 623 | return 0; |
---|
[2100] | 624 | } |
---|