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--- ./newlib/libc/sys/psp/select.c.orig 2012-01-25 19:33:12.000000000 +0000
+++ ./newlib/libc/sys/psp/select.c 2012-01-25 19:33:12.000000000 +0000
@@ -0,0 +1,199 @@
+/*
+ * PSP Software Development Kit - http://www.pspdev.org
+ * -----------------------------------------------------------------------
+ * Licensed under the BSD license, see LICENSE in PSPSDK root for details.
+ *
+ * select.c - Socket wrappers to provide similar functions to normal unix
+ *
+ * Copyright (c) 2006 Rafael Cabezas <rafpsp@gmail.com>
+ *
+ * - 20070701 Alper Akcan "anhanguera" <distchx@yahoo.com>
+ * select EBADF fix
+ *
+ */
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/select.h>
+#include <psptypes.h>
+#include <pspthreadman.h>
+
+#include "fdman.h"
+
+#define SELECT_POLLING_DELAY_IN_us 100
+
+static int __psp_poll_select(int n, fd_set *readfds, fd_set *writefds, fd_set *exceptfds);
+
+int select(int n, fd_set *readfds, fd_set *writefds,
+ fd_set *exceptfds, struct timeval *timeout)
+{
+ int count;
+ clock_t start_time, time;
+
+ start_time = clock();
+
+ count = 0;
+
+ if (timeout) {
+ time = (timeout->tv_sec * CLOCKS_PER_SEC) + (timeout->tv_usec * (1*1000*1000/CLOCKS_PER_SEC));
+ }
+ else {
+ time = 0;
+ }
+
+ for (;;) {
+ count = __psp_poll_select(n, readfds, writefds, exceptfds);
+ /* If timeout == NULL, then don't timeout! */
+ if ( (count > 0) || ((timeout != NULL) && ((clock() - start_time) >= time)) ) {
+ break;
+ }
+ if (count < 0) {
+ /* anhanguera - 20070701
+ * error, lets let the caller to handle error state
+ */
+ break;
+ }
+ else {
+ /* Nothing found, and not timed-out yet; let's yield for SELECT_POLLING_DELAY_IN_us, so we're not in a busy loop */
+ sceKernelDelayThread(SELECT_POLLING_DELAY_IN_us);
+ }
+ }
+
+ return count;
+}
+
+#define SCE_FD_SET(n, p) \
+ ((p)->fds_bits[((n) & 0xFF) /__NFDBITS] |= (1 << ((n) % __NFDBITS)))
+
+static int __psp_poll_select(int n, fd_set *readfds, fd_set *writefds, fd_set *exceptfds)
+{
+ int fd, count;
+ fd_set ready_readfds, ready_writefds, ready_exceptfds;
+ fd_set scereadfds, scewritefds, sceexceptfds;
+ SceKernelMppInfo info;
+ struct timeval scetv;
+
+ FD_ZERO(&ready_readfds);
+ FD_ZERO(&ready_writefds);
+ FD_ZERO(&ready_exceptfds);
+
+ info.size = sizeof(info);
+ scetv.tv_sec = 0;
+ scetv.tv_usec = 0;
+ count = 0;
+
+ for (fd = 0; fd < n; fd++)
+ {
+ if (__psp_descriptormap[fd] != NULL) {
+ switch(__psp_descriptormap[fd]->type)
+ {
+ case __PSP_DESCRIPTOR_TYPE_PIPE:
+ if (readfds && FD_ISSET(fd, readfds)) {
+ if (sceKernelReferMsgPipeStatus(__psp_descriptormap[fd]->sce_descriptor, &info) == 0) {
+ if (info.bufSize != info.freeSize) {
+ FD_SET(fd, &ready_readfds);
+ count++;
+ }
+ }
+ else {
+ FD_SET(fd, &ready_exceptfds);
+ count++;
+ }
+ }
+ if (writefds && FD_ISSET(fd, writefds)) {
+ if (sceKernelReferMsgPipeStatus(__psp_descriptormap[fd]->sce_descriptor, &info) == 0) {
+ if (info.freeSize > 0) {
+ FD_SET(fd, &ready_writefds);
+ count++;
+ }
+ }
+ else {
+ FD_SET(fd, &ready_exceptfds);
+ count++;
+ }
+ }
+ break;
+ case __PSP_DESCRIPTOR_TYPE_FILE:
+ if (readfds && FD_ISSET(fd, readfds)) {
+ if (readfds && FD_ISSET(fd, readfds)) {
+ /** Just set it for now */
+ FD_SET(fd, &ready_readfds);
+ count++;
+ }
+ }
+ break;
+ case __PSP_DESCRIPTOR_TYPE_SOCKET:
+ if (readfds && FD_ISSET(fd, readfds)) {
+ int sce_ret, sce_fd;
+ sce_fd = __psp_descriptormap[fd]->sce_descriptor;
+ FD_ZERO(&scereadfds);
+ SCE_FD_SET(sce_fd, &scereadfds);
+ errno = 0;
+ sce_ret = sceNetInetSelect (sce_fd+1, &scereadfds, NULL, NULL, &scetv);
+ if (sce_ret>0) {
+ FD_SET(fd, &ready_readfds);
+ count++;
+ }
+ else if (sce_ret == -1) {
+ errno = sceNetInetGetErrno();
+ if (exceptfds && FD_ISSET(fd, exceptfds)) {
+ FD_SET(fd, &ready_exceptfds);
+ count++;
+ } else {
+ count = -1;
+ }
+ }
+ }
+ if (writefds && FD_ISSET(fd, writefds)) {
+ int sce_ret;
+ FD_ZERO(&scewritefds);
+ SCE_FD_SET(__psp_descriptormap[fd]->sce_descriptor, &scewritefds);
+ sce_ret = sceNetInetSelect (__psp_descriptormap[fd]->sce_descriptor+1, NULL, &scewritefds, NULL, &scetv);
+ if (sce_ret>0) {
+ FD_SET(fd, &ready_writefds);
+ count++;
+ }
+ else if (sce_ret == -1) {
+ if (exceptfds && FD_ISSET(fd, exceptfds)) {
+ FD_SET(fd, &ready_exceptfds);
+ count++;
+ }
+ else {
+ count = -1;
+ }
+ }
+ }
+ break;
+ }
+ } else {
+ /* anhanguera - 20070701
+ *
+ * here we know that, system has no idea about 'fd'. if caller requested
+ * information about 'fd', return '-1' and set errno to 'EBADF'. we should
+ * increse the count and set exceptfd for fd, but it is safe to obey select
+ * manual.
+ *
+ * from manual;
+ * On error, -1 is returned, and errno is set appropriately; the sets and
+ * timeout become undefined, so do not rely on their contents after an error.
+ */
+ if ((readfds && FD_ISSET(fd, readfds)) ||
+ (writefds && FD_ISSET(fd, writefds)) ||
+ (exceptfds && FD_ISSET(fd, exceptfds))) {
+ errno = EBADF;
+ return -1;
+ }
+ }
+ }
+
+ if (count > 0) {
+ if (readfds)
+ *readfds = ready_readfds;
+ if (writefds)
+ *writefds = ready_writefds;
+ if (exceptfds)
+ *exceptfds = ready_exceptfds;
+ }
+
+ return count;
+}
+
|
