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Improve threading support further

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This commit is contained in:
Justine Tunney 2022-05-17 04:14:28 -07:00
parent 8bfb70ca3f
commit ce71677156
61 changed files with 882 additions and 747 deletions
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18
libc/calls/pipe-nt.c
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@ -17,6 +17,7 @@
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/internal.h"
#include "libc/intrin/spinlock.h"
#include "libc/nt/createfile.h"
#include "libc/nt/enum/accessmask.h"
#include "libc/nt/enum/creationdisposition.h"
@ -33,9 +34,14 @@ textwindows int sys_pipe_nt(int pipefd[2], unsigned flags) {
int reader, writer;
char16_t pipename[64];
CreatePipeName(pipename);
if ((reader = __reservefd(-1)) == -1) return -1;
if ((writer = __reservefd(-1)) == -1) {
__releasefd(reader);
_spinlock(&__fds_lock);
if ((reader = __reservefd_unlocked(-1)) == -1) {
_spunlock(&__fds_lock);
return -1;
}
if ((writer = __reservefd_unlocked(-1)) == -1) {
__releasefd_unlocked(reader);
_spunlock(&__fds_lock);
return -1;
}
if (~flags & O_DIRECT) {
@ -58,12 +64,14 @@ textwindows int sys_pipe_nt(int pipefd[2], unsigned flags) {
g_fds.p[writer].handle = hout;
pipefd[0] = reader;
pipefd[1] = writer;
_spunlock(&__fds_lock);
return 0;
} else {
CloseHandle(hin);
}
}
__releasefd(writer);
__releasefd(reader);
__releasefd_unlocked(writer);
__releasefd_unlocked(reader);
_spunlock(&__fds_lock);
return -1;
}