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libthread: simplify

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Now that everything uses pthreads and pthreadperthread,
can delete various conditionals, all the custom context code,
and so on. Also update documents.

Fixes #355.
This commit is contained in:
Russ Cox 2020-12-30 07:18:30 -05:00
parent e68f07d46f
commit 1857120806
23 changed files with 16 additions and 1481 deletions
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7
include/u.h
View file

@ -67,7 +67,6 @@ typedef long p9jmp_buf[sizeof(sigjmp_buf)/sizeof(long)];
#if defined(__linux__)
# include <sys/types.h>
# include <pthread.h>
# define PLAN9PORT_USING_PTHREADS 1
# if defined(__USE_MISC)
# undef _NEEDUSHORT
# undef _NEEDUINT
@ -76,7 +75,6 @@ typedef long p9jmp_buf[sizeof(sigjmp_buf)/sizeof(long)];
#elif defined(__sun__)
# include <sys/types.h>
# include <pthread.h>
# define PLAN9PORT_USING_PTHREADS 1
# undef _NEEDUSHORT
# undef _NEEDUINT
# undef _NEEDULONG
@ -84,7 +82,6 @@ typedef long p9jmp_buf[sizeof(sigjmp_buf)/sizeof(long)];
#elif defined(__FreeBSD__)
# include <sys/types.h>
# include <osreldate.h>
# define PLAN9PORT_USING_PTHREADS 1
# include <pthread.h>
# if !defined(_POSIX_SOURCE)
# undef _NEEDUSHORT
@ -93,7 +90,6 @@ typedef long p9jmp_buf[sizeof(sigjmp_buf)/sizeof(long)];
#elif defined(__APPLE__)
# include <sys/types.h>
# include <pthread.h>
# define PLAN9PORT_USING_PTHREADS 1
# if __GNUC__ < 4
# undef _NEEDUSHORT
# undef _NEEDUINT
@ -108,20 +104,19 @@ typedef long p9jmp_buf[sizeof(sigjmp_buf)/sizeof(long)];
#elif defined(__NetBSD__)
# include <sched.h>
# include <sys/types.h>
# include <pthread.h>
# undef _NEEDUSHORT
# undef _NEEDUINT
# undef _NEEDULONG
#elif defined(__OpenBSD__)
# include <sys/types.h>
# include <pthread.h>
# define PLAN9PORT_USING_PTHREADS 1
# undef _NEEDUSHORT
# undef _NEEDUINT
# undef _NEEDULONG
#else
/* No idea what system this is -- try some defaults */
# include <pthread.h>
# define PLAN9PORT_USING_PTHREADS 1
#endif
#ifndef O_DIRECT