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Add epoll and do more release readiness changes

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This change also pays off some of the remaining technical debt with
stdio, file descriptors, and memory managemnt polyfills.
This commit is contained in:
Justine Tunney 2020-11-28 12:01:51 -08:00
parent a9ea949df8
commit 3e4fd4b0ad
271 changed files with 5706 additions and 1365 deletions
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32
libc/calls/read.c
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@ -17,17 +17,8 @@
│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA │
│ 02110-1301 USA │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/assert.h"
#include "libc/bits/weaken.h"
#include "libc/calls/calls.h"
#include "libc/calls/internal.h"
#include "libc/calls/struct/iovec.h"
#include "libc/dce.h"
#include "libc/macros.h"
#include "libc/runtime/runtime.h"
#include "libc/sock/internal.h"
#include "libc/sysv/errfuns.h"
#include "libc/zipos/zipos.h"
#include "libc/sock/sock.h"
/**
* Reads data from file descriptor.
@ -41,24 +32,5 @@
* @asyncsignalsafe
*/
ssize_t read(int fd, void *buf, size_t size) {
ssize_t rc;
if (fd == -1) return einval();
if (isfdkind(fd, kFdZip)) {
rc =
weaken(__zipos_read)((struct ZiposHandle *)(intptr_t)g_fds.p[fd].handle,
(struct iovec[]){{buf, size}}, 1, -1);
} else if (!IsWindows()) {
rc = read$sysv(fd, buf, size);
} else if (isfdkind(fd, kFdFile) || isfdkind(fd, kFdConsole)) {
rc = read$nt(&g_fds.p[fd], (struct iovec[]){{buf, size}}, 1, -1);
} else if (isfdkind(fd, kFdSocket)) {
rc = weaken(recvfrom$nt)(&g_fds.p[fd], (struct iovec[]){{buf, size}}, 1, 0,
NULL, NULL);
} else {
rc = ebadf();
}
if (!IsTrustworthy() && rc != -1) {
if ((size_t)rc > size) abort();
}
return rc;
return readv(fd, &(struct iovec){buf, size}, 1);
}