X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/ce471ed7ea3fdadc8301024a64103c33332725a1..0b0306fee606608373a16c77c67ee52fbca2525c:/src/smpi/internals/smpi_global.cpp diff --git a/src/smpi/internals/smpi_global.cpp b/src/smpi/internals/smpi_global.cpp index fa3c3c95c0..cca996252f 100644 --- a/src/smpi/internals/smpi_global.cpp +++ b/src/smpi/internals/smpi_global.cpp @@ -449,42 +449,40 @@ static smpi_entry_point_type smpi_resolve_function(void* handle) return smpi_entry_point_type(); } -static void smpi_copy_file(std::string src,std::string target, off_t fdin_size, int rank){ - - int fdin = open(src.c_str(), O_RDONLY); - xbt_assert(fdin >= 0, "Cannot read from %s. Please make sure that the file exists and is executable.", - src.c_str()); - int fdout = open(target.c_str(), O_CREAT | O_RDWR, S_IRWXU); - xbt_assert(fdout >= 0, "Cannot write into %s", target.c_str()); +static void smpi_copy_file(std::string src, std::string target, off_t fdin_size) +{ + int fdin = open(src.c_str(), O_RDONLY); + xbt_assert(fdin >= 0, "Cannot read from %s. Please make sure that the file exists and is executable.", src.c_str()); + int fdout = open(target.c_str(), O_CREAT | O_RDWR, S_IRWXU); + xbt_assert(fdout >= 0, "Cannot write into %s", target.c_str()); - XBT_DEBUG("Copy %ld bytes into %s", static_cast(fdin_size), target.c_str()); + XBT_DEBUG("Copy %ld bytes into %s", static_cast(fdin_size), target.c_str()); #if HAVE_SENDFILE - ssize_t sent_size = sendfile(fdout, fdin, NULL, fdin_size); - xbt_assert(sent_size == fdin_size, - "Error while copying %s: only %zd bytes copied instead of %ld (errno: %d -- %s)", - target.c_str(), sent_size, fdin_size, errno, strerror(errno)); + ssize_t sent_size = sendfile(fdout, fdin, NULL, fdin_size); + xbt_assert(sent_size == fdin_size, "Error while copying %s: only %zd bytes copied instead of %ld (errno: %d -- %s)", + target.c_str(), sent_size, fdin_size, errno, strerror(errno)); #else - const int bufsize = 1024 * 1024 * 4; - char buf[bufsize]; - while (int got = read(fdin, buf, bufsize)) { - if (got == -1) { - xbt_assert(errno == EINTR, "Cannot read from %s", src.c_str()); - } else { - char* p = buf; - int todo = got; - while (int done = write(fdout, p, todo)) { - if (done == -1) { - xbt_assert(errno == EINTR, "Cannot write into %s", target.c_str()); - } else { - p += done; - todo -= done; - } + const int bufsize = 1024 * 1024 * 4; + char buf[bufsize]; + while (int got = read(fdin, buf, bufsize)) { + if (got == -1) { + xbt_assert(errno == EINTR, "Cannot read from %s", src.c_str()); + } else { + char* p = buf; + int todo = got; + while (int done = write(fdout, p, todo)) { + if (done == -1) { + xbt_assert(errno == EINTR, "Cannot write into %s", target.c_str()); + } else { + p += done; + todo -= done; } } } + } #endif - close(fdin); - close(fdout); + close(fdin); + close(fdout); } #if not defined(__APPLE__) @@ -574,7 +572,7 @@ int smpi_main(const char* executable, int argc, char *argv[]) + "_" + std::to_string(getpid()) + "_" + std::to_string(rank) + ".so"; - smpi_copy_file(executable_copy, target_executable, fdin_size, rank); + smpi_copy_file(executable_copy, target_executable, fdin_size); //if smpi/privatize-libs is set, duplicate pointed lib and link each executable copy to a different one. std::string target_lib; for (auto const& libpath : privatize_libs_paths){ @@ -598,7 +596,7 @@ int smpi_main(const char* executable, int argc, char *argv[]) target_lib = std::string(pad - std::to_string(rank).length(), '0') +std::to_string(rank)+libname.substr(pad); XBT_DEBUG("copy lib %s to %s, with size %lld", libpath.c_str(), target_lib.c_str(), (long long)fdin_size2); - smpi_copy_file(libpath, target_lib, fdin_size2, rank); + smpi_copy_file(libpath, target_lib, fdin_size2); std::string sedcommand = "sed -i -e 's/"+libname+"/"+target_lib+"/g' "+target_executable; int ret = system(sedcommand.c_str());