Rich Felker
5ce3737931
libc.h was intended to be a header for access to global libc state and related interfaces, but ended up included all over the place because it was the way to get the weak_alias macro. most of the inclusions removed here are places where weak_alias was needed. a few were recently introduced for hidden. some go all the way back to when libc.h defined CANCELPT_BEGIN and _END, and all (wrongly implemented) cancellation points had to include it. remaining spurious users are mostly callers of the LOCK/UNLOCK macros and files that use the LFS64 macro to define the awful *64 aliases. in a few places, new inclusion of libc.h is added because several internal headers no longer implicitly include libc.h. declarations for __lockfile and __unlockfile are moved from libc.h to stdio_impl.h so that the latter does not need libc.h. putting them in libc.h made no sense at all, since the macros in stdio_impl.h are needed to use them correctly anyway.
16 lines
363 B
C
16 lines
363 B
C
#include <poll.h>
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#include <time.h>
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#include <signal.h>
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#include "syscall.h"
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int poll(struct pollfd *fds, nfds_t n, int timeout)
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{
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#ifdef SYS_poll
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return syscall_cp(SYS_poll, fds, n, timeout);
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#else
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return syscall_cp(SYS_ppoll, fds, n, timeout>=0 ?
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&((struct timespec){ .tv_sec = timeout/1000,
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.tv_nsec = timeout%1000*1000000 }) : 0, 0, _NSIG/8);
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#endif
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}
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