__FSEXT_get_function

Syntax

#include <sys/fsext.h> __FSEXT_Function *__FSEXT_get_function(int _fd);

This function is part of the File System Extensions. It is used internal to libc.a to redirect I/O requests to the appropriate extensions.

Portability

ANSI/ISO C	No
POSIX	No

Example

_read(int fd, void *buf, int len) { __FSEXT_Function *func = __FSEXT_get_function(fd); if (func) { int rv; if (func(__FSEXT_read, &rv, &fd)) return rv; } /* rest of read() */ }