/* * $HEADER$ */ #ifndef OMPI_FEW_H #define OMPI_FEW_H #ifdef __cplusplus extern "C" { #endif /** * Forks, execs, and waits for a subordinate program * * @param argv Null-terminated argument vector; argv[0] is the program * (same as arguments to execvp()) * * @param status Upon success, will be filled with the return status * from waitpid(2). The WIF* macros can be used to examine the value * (see waitpid(2)). * * @retval OMPI_SUCCESS If the child launched and exited. * @retval OMPI_ERR_IN_ERRNO If a failure occurred, errno should be * examined for the specific error. * * This function forks, execs, and waits for an executable to * complete. The input argv must be a NULL-terminated array (perhaps * built with the ompi_arr_*() interface). Upon success, OMPI_SUCCESS * is returned. This function will wait either until the child * process has exited or waitpid() returns an error other than EINTR. * * Note that a return of OMPI_SUCCESS does \em not imply that the child * process exited successfully -- it simply indicates that the child * process exited. The WIF* macros (see waitpid(2)) should be used to * examine the status to see hold the child exited. */ int ompi_few(char *argv[], int *status); #ifdef __cplusplus } #endif #endif /* OMPI_FEW_H */