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libc_lock_pipe: implement F_GETFL 'fcntl()' command

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Fixes #622.
This commit is contained in:
Christian Prochaska 2013-01-16 16:08:30 +01:00 committed by Norman Feske
parent 3cb7476cb7
commit 1fdee7a2cc
1 changed files with 15 additions and 0 deletions
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15
libports/src/lib/libc_lock_pipe/plugin.cc
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@ -17,6 +17,7 @@
#include <util/misc_math.h> #include <util/misc_math.h>
/* libc includes */ /* libc includes */
#include <fcntl.h>
#include <stdlib.h> #include <stdlib.h>
/* libc plugin interface */ /* libc plugin interface */
@ -95,6 +96,7 @@ namespace {
struct timeval *timeout); struct timeval *timeout);
int close(Libc::File_descriptor *pipefdo); int close(Libc::File_descriptor *pipefdo);
int fcntl(Libc::File_descriptor *pipefdo, int cmd, long arg);
int pipe(Libc::File_descriptor *pipefdo[2]); int pipe(Libc::File_descriptor *pipefdo[2]);
ssize_t read(Libc::File_descriptor *pipefdo, void *buf, ::size_t count); ssize_t read(Libc::File_descriptor *pipefdo, void *buf, ::size_t count);
int select(int nfds, fd_set *readfds, fd_set *writefds, int select(int nfds, fd_set *readfds, fd_set *writefds,
@ -227,6 +229,19 @@ namespace {
} }
int Plugin::fcntl(Libc::File_descriptor *pipefdo, int cmd, long arg)
{
switch (cmd) {
case F_GETFL:
if (is_write_end(pipefdo))
return O_WRONLY;
else
return O_RDONLY;
default: PERR("fcntl(): command %d not supported", cmd); return -1;
}
}
int Plugin::pipe(Libc::File_descriptor *pipefdo[2]) int Plugin::pipe(Libc::File_descriptor *pipefdo[2])
{ {
pipefdo[0] = Libc::file_descriptor_allocator()->alloc(this, pipefdo[0] = Libc::file_descriptor_allocator()->alloc(this,