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musl/include/poll.h

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initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
#ifndef _POLL_H
#define _POLL_H
#ifdef __cplusplus
extern "C" {
#endif
fix typo introduced in poll.h
2012-09-09 20:27:26 +00:00
#include <features.h>
add linux ppoll syscall wrapper
2012-09-09 20:09:29 +00:00
fix POLLWRNORM and POLLWRBAND on mips these macros have the same distinct definition on blackfin, frv, m68k, mips, sparc and xtensa kernels. POLLMSG and POLLRDHUP additionally differ on sparc.
2015-02-13 17:10:52 +00:00
#include <bits/poll.h>
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
#define POLLIN 0x001
#define POLLPRI 0x002
#define POLLOUT 0x004
#define POLLERR 0x008
#define POLLHUP 0x010
#define POLLNVAL 0x020
#define POLLRDNORM 0x040
#define POLLRDBAND 0x080
fix POLLWRNORM and POLLWRBAND on mips these macros have the same distinct definition on blackfin, frv, m68k, mips, sparc and xtensa kernels. POLLMSG and POLLRDHUP additionally differ on sparc.
2015-02-13 17:10:52 +00:00
#ifndef POLLWRNORM
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
#define POLLWRNORM 0x100
#define POLLWRBAND 0x200
fix POLLWRNORM and POLLWRBAND on mips these macros have the same distinct definition on blackfin, frv, m68k, mips, sparc and xtensa kernels. POLLMSG and POLLRDHUP additionally differ on sparc.
2015-02-13 17:10:52 +00:00
#endif
#ifndef POLLMSG
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
#define POLLMSG 0x400
add linux extension POLLRDHUP to poll.h the POLL prefix is in the reserved namespace for poll.h, so no feature test macro checks are needed.
2012-12-26 21:55:49 +00:00
#define POLLRDHUP 0x2000
fix preprocessor error introduced in poll.h in last commit
2015-03-04 19:15:44 +00:00
#endif
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
fix wrong type for poll.h nfds_t this should not break anything since the type should never be used except as the argument type for poll.
2012-09-01 04:20:24 +00:00
typedef unsigned long nfds_t;
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
make brace placement in public header struct definitions consistent placing the opening brace on the same line as the struct keyword/tag is the style I prefer and seems to be the prevailing practice in more recent additions. these changes were generated by the command: find include/ arch/*/bits -name '*.h' \ -exec sed -i '/^struct [^;{]*$/{N;s/\n/ /;}' {} + and subsequently checked by hand to ensure that the regex did not pick up any false positives.
2016-07-03 18:40:11 +00:00
struct pollfd {
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
int fd;
short events;
short revents;
};
int poll (struct pollfd *, nfds_t, int);
fix erroneous feature test macro check for ppoll commit f247462b0831cbf163e976ee9a909748c674b88b incorrectly hid ppoll in the presence of _GNU_SOURCE due to an oversight that defining _BSD_SOURCE does not implicitly define _GNU_SOURCE. at present, headers still have to explicitly check for each feature profile level; this may be changed at some point in the future via features.h, but has not been changed yet.
2024-02-08 19:44:00 +00:00
#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
add linux ppoll syscall wrapper
2012-09-09 20:09:29 +00:00
#define __NEED_time_t
#define __NEED_struct_timespec
#define __NEED_sigset_t
#include <bits/alltypes.h>
int ppoll(struct pollfd *, nfds_t, const struct timespec *, const sigset_t *);
#endif
add time64 symbol name redirects to public headers, under arch control a _REDIR_TIME64 macro is introduced, which the arch's alltypes.h is expected to define, to control redirection of symbol names for interfaces that involve time_t and derived types. this ensures that object files will only be linked to libc interfaces matching the ABI whose headers they were compiled against. along with time32 compat shims, which will be introduced separately, the redirection also makes it possible for a single libc (static or shared) to be used with object files produced with either the old (32-bit time_t) headers or the new ones after 64-bit time_t switchover takes place. mixing of such object files (or shared libraries) in the same program will also be possible, but must be done with care; ABI between libc and a consumer of the libc interfaces is guaranteed to match by the the symbol name redirection, but pairwise ABI between consumers of libc that define interfaces between each other in terms of time_t is not guaranteed to match. this change adds a dependency on an additional "GNU C" feature to the public headers for existing 32-bit archs, which is generally undesirable; however, the feature is one which glibc has depended on for a long time, and thus which any viable alternative compiler is going to need to provide. 64-bit archs are not affected, nor will future 32-bit archs be, regardless of whether they are "new" on the kernel side (e.g. riscv32) or just newly-added (e.g. a new sparc or xtensa port). the same applies to newly-added ABIs for existing machine-level archs.
2019-07-31 19:24:58 +00:00
#if _REDIR_TIME64
fix erroneous feature test macro check for ppoll commit f247462b0831cbf163e976ee9a909748c674b88b incorrectly hid ppoll in the presence of _GNU_SOURCE due to an oversight that defining _BSD_SOURCE does not implicitly define _GNU_SOURCE. at present, headers still have to explicitly check for each feature profile level; this may be changed at some point in the future via features.h, but has not been changed yet.
2024-02-08 19:44:00 +00:00
#if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
add time64 symbol name redirects to public headers, under arch control a _REDIR_TIME64 macro is introduced, which the arch's alltypes.h is expected to define, to control redirection of symbol names for interfaces that involve time_t and derived types. this ensures that object files will only be linked to libc interfaces matching the ABI whose headers they were compiled against. along with time32 compat shims, which will be introduced separately, the redirection also makes it possible for a single libc (static or shared) to be used with object files produced with either the old (32-bit time_t) headers or the new ones after 64-bit time_t switchover takes place. mixing of such object files (or shared libraries) in the same program will also be possible, but must be done with care; ABI between libc and a consumer of the libc interfaces is guaranteed to match by the the symbol name redirection, but pairwise ABI between consumers of libc that define interfaces between each other in terms of time_t is not guaranteed to match. this change adds a dependency on an additional "GNU C" feature to the public headers for existing 32-bit archs, which is generally undesirable; however, the feature is one which glibc has depended on for a long time, and thus which any viable alternative compiler is going to need to provide. 64-bit archs are not affected, nor will future 32-bit archs be, regardless of whether they are "new" on the kernel side (e.g. riscv32) or just newly-added (e.g. a new sparc or xtensa port). the same applies to newly-added ABIs for existing machine-level archs.
2019-07-31 19:24:58 +00:00
__REDIR(ppoll, __ppoll_time64);
#endif
#endif
initial check-in, version 0.5.0
2011-02-12 05:22:29 +00:00
#ifdef __cplusplus
}
#endif
#endif