Retrieve the partition identifiers currently set in the posix_spawnattr_t object
#include <posix_spawnattr.h> int posix_spawnattr_getpartid( const posix_spawnattr_t *_Restrict attrp, int *num, partlist_info_t plist_info[]);
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
The caller must provide the storage for the partlist_info_t functions to be returned. The num pointer is initialized by the caller with the number of partlist_info_t elements plist_info has space for.
Upon return, num will be set as follows:
For example, if the caller provides space for 4 entries, and sets *num == 4 and there are 6 entries in the posix_spawnattr_t object, then 4 entries are placed into the structure, and the num pointer will be set to -2. If the caller sets*num == 0, they can easily identify the number of entries, and allocate enough space to retrieve all of those entries.
The caller can distinguish partition Id types with the PART_TYPE() macro defined in <part.h>. This function is a QNX Neutrino extension to posix_spawnattr_t(). |
The process ID of the child process, or -1 if an error occurs (errno is set).
Safety: | |
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Cancellation point | No |
Interrupt handler | Yes |
Signal handler | Yes |
Thread | Yes |
posix_spawn(), posix_spawn_file_actions_addclose(), posix_spawn_file_actions_adddup2(), posix_spawn_file_actions_addopen(), posix_spawn_file_actions_destroy(), posix_spawn_file_actions_init(), posix_spawnattr_addpartid(), posix_spawnattr_addpartition(), posix_spawnattr_destroy(), posix_spawnattr_getcred(), posix_spawnattr_getflags(), posix_spawnattr_getnode(), posix_spawnattr_getpgroup(), posix_spawnattr_getrunmask(), posix_spawnattr_getschedparam(), posix_spawnattr_getschedpolicy(), posix_spawnattr_getsigdefault(), posix_spawnattr_getsigignore(), posix_spawnattr_getsigmask(), posix_spawnattr_getstackmax(), posix_spawnattr_getxflags(), posix_spawnattr_init(), posix_spawnattr_setcred(), posix_spawnattr_setflags(), posix_spawnattr_setnode(), posix_spawnattr_setpgroup(), posix_spawnattr_setschedparam(), posix_spawnattr_setrunmask(), posix_spawnattr_setschedpolicy(), posix_spawnattr_setsigdefault(), posix_spawnattr_setsigignore(), posix_spawnattr_setsigmask(), posix_spawnattr_setstackmax(), posix_spawnattr_setxflags(), posix_spawnp()