AIO_INIT(3) | Linux Programmer's Manual | AIO_INIT(3) |
aio_init - asynchronous I/O initialization
#define _GNU_SOURCE /* See feature_test_macros(7) */ #include <aio.h>
void aio_init(const struct aioinit *init);
Link with -lrt.
The GNU-specific aio_init() function allows the caller to provide tuning hints to the glibc POSIX AIO implementation. Use of this function is optional, but to be effective, it must be called before employing any other functions in the POSIX AIO API.
The tuning information is provided in the buffer pointed to by the argument init. This buffer is a structure of the following form:
struct aioinit {
int aio_threads; /* Maximum number of threads */
int aio_num; /* Number of expected simultaneous
requests */
int aio_locks; /* Not used */
int aio_usedba; /* Not used */
int aio_debug; /* Not used */
int aio_numusers; /* Not used */
int aio_idle_time; /* Number of seconds before idle thread
terminates (since glibc 2.2) */
int aio_reserved; };
The following fields are used in the aioinit structure:
The aio_init() function is available since glibc 2.1.
This function is a GNU extension.
This page is part of release 4.16 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
2017-09-15 | Linux |