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Implemented support for posix_spawn() and (main change): always use vfork() for starting external commands

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Jean-Francois Dockes 2015-05-27 16:24:18 +02:00
parent 1de1b64c02
commit 5916f1a0e0
10 changed files with 203 additions and 38 deletions
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19
src/common/rclinit.cpp
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@ -149,17 +149,18 @@ RclConfig *recollinit(RclInitFlags flags,
ExecCmd::useVfork(true);
#else
// Keep threads init behind log init, but make sure it's done before
// we do the vfork choice !
// we do the vfork choice ! The latter is not used any more actually,
// we always use vfork except if forbidden by config.
config->initThrConf();
bool intern_noThr = config->getThrConf(RclConfig::ThrIntern).first == -1;
bool split_noThr = config->getThrConf(RclConfig::ThrSplit).first == -1;
bool write_noThr = config->getThrConf(RclConfig::ThrDbWrite).first == -1;
if (intern_noThr && split_noThr && write_noThr) {
LOGDEB0(("rclinit: single-threaded execution: use vfork\n"));
ExecCmd::useVfork(true);
bool novfork;
config->getConfParam("novfork", &novfork);
if (novfork) {
LOGDEB0(("rclinit: will use fork() for starting commands\n"));
ExecCmd::useVfork(false);
} else {
LOGDEB0(("rclinit: multi-threaded execution: do not use vfork\n"));
ExecCmd::useVfork(false);
LOGDEB0(("rclinit: will use vfork() for starting commands\n"));
ExecCmd::useVfork(true);
}
#endif