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-rw-r--r--accel-pptpd/triton/md.c342
1 files changed, 342 insertions, 0 deletions
diff --git a/accel-pptpd/triton/md.c b/accel-pptpd/triton/md.c
new file mode 100644
index 0000000..a0d2fab
--- /dev/null
+++ b/accel-pptpd/triton/md.c
@@ -0,0 +1,342 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/time.h>
+#include <signal.h>
+#include <string.h>
+
+#include "triton_p.h"
+
+#define USE_GET_TIME
+
+static __thread struct list_head handlers;
+static __thread fd_set read_fds;
+static __thread fd_set write_fds;
+static __thread fd_set read_fds0;
+static __thread fd_set write_fds0;
+static __thread int md_term;
+
+asm(".hidden md_init");
+asm(".hidden md_run");
+asm(".hidden md_terminate");
+
+static void _triton_process_events(int wait);
+
+void md_init()
+{
+ INIT_LIST_HEAD(&handlers);
+
+ FD_ZERO(&read_fds);
+ FD_ZERO(&write_fds);
+
+ signal(SIGPIPE,SIG_IGN);
+
+ #ifdef USE_CORO
+ triton_coroutine_create(0,md_run,0,1);
+ #endif
+}
+void md_run()
+{
+ md_term=0;
+
+ while(!md_term)
+ {
+ _triton_process_events(1);
+ }
+}
+
+
+#ifdef USE_CORO
+asm(".hidden cur_uc");
+ucontext_t cur_uc;
+#endif
+
+static void _triton_process_events(int wait)
+{
+ int max_fd=0,t;
+ struct md_handler_t *md_h;
+ struct timeval tv1,tv2,twait0;
+ struct list_head *p1,*p2;
+ int twait,n;
+ int _break=0;
+
+ gettimeofday(&tv1,NULL);
+ _break=0;
+
+ if (wait)
+ {
+ twait=timer_prepare(&tv1);
+ #ifdef USE_CORO
+ t=coroutine_get_timeout(&tv1);
+ #else
+ t=-1;
+ #endif
+ if (t>=0 && (twait==-1 || t<twait)) twait=t;
+
+ list_for_each_entry(md_h,&handlers,entry)
+ {
+ if (md_h->in_handler) continue;
+ if (md_h->handler->twait>=0 && (twait==-1 || md_h->handler->twait<twait)) twait=md_h->handler->twait;
+ }
+ }else
+ {
+ twait=0;
+ }
+
+ read_fds0=read_fds; write_fds0=write_fds;
+
+ list_for_each_entry(md_h,&handlers,entry)
+ {
+ if (md_h->in_handler)
+ {
+ FD_CLR(md_h->fd,&read_fds0);
+ FD_CLR(md_h->fd,&write_fds0);
+ }else
+ {
+ if (md_h->fd>max_fd) max_fd=md_h->fd;
+ }
+ }
+
+ twait0=(struct timeval){twait/1000,(twait%1000)*1000};
+ n=select(max_fd+1,&read_fds0,&write_fds0,NULL,twait>=0?&twait0:NULL);
+
+ gettimeofday(&tv2,NULL);
+ twait=(tv2.tv_sec-tv1.tv_sec)*1000+(tv2.tv_usec-tv1.tv_usec)/1000;
+
+ list_for_each_safe(p1,p2,&handlers)
+ {
+ md_h=list_entry(p1,struct md_handler_t,entry);
+ //if (!md_h->del)
+ {
+ if (md_h->handler->twait>=0)
+ {
+ md_h->handler->twait-=twait;
+ if (md_h->handler->twait<=0) md_h->timeout=1;
+ }
+ }
+ }
+
+ timer_check(&tv2);
+ gettimeofday(&tv2,NULL);
+ #ifdef USE_CORO
+ coroutine_check_timeout(&tv2);
+ #endif
+
+ list_for_each_safe(p1,p2,&handlers)
+ {
+ md_h=list_entry(p1,struct md_handler_t,entry);
+ if (md_h->in_handler) continue;
+ if (!md_h->del)
+ {
+ if (md_h->timeout)
+ {
+ md_h->timeout=0;
+ #ifdef USE_CORO
+ md_h->in_handler=1;
+ if (md_h->coro)
+ {
+ long int id=(long int)md_h->coro;
+ md_h->coro=NULL;
+ triton_coroutine_wakeup(id);
+ }else
+ #endif
+ {
+ md_h->handler->timeout(md_h->handler);
+ }
+ md_h->in_handler=0;
+ if (_break) return;
+ }
+ }
+ }
+
+ if (n<0)
+ {
+ perror("triton: md(select)");
+ //goto check_timeout;
+ }
+ if (n>0)
+ {
+ list_for_each_safe(p1,p2,&handlers)
+ {
+ md_h=list_entry(p1,struct md_handler_t,entry);
+ if (md_h->in_handler) continue;
+ if (md_h->del) continue;
+ md_h->in_handler=1;
+ if (FD_ISSET(md_h->fd,&read_fds0))
+ {
+ if (md_h->handler->read==md_h->handler->write)
+ FD_CLR(md_h->fd,&write_fds0);
+
+ #ifdef USE_CORO
+ if (md_h->coro)
+ {
+ long int id=(long int)md_h->coro;
+ md_h->coro=NULL;
+ triton_coroutine_wakeup(id);
+ }else
+ #endif
+ {
+ md_h->handler->read(md_h->handler);
+ }
+ }
+ if (!md_h->del && FD_ISSET(md_h->fd,&write_fds0) && md_h->handler->write)
+ {
+ #ifdef USE_CORO
+ if (md_h->coro)
+ {
+ long int id=(long int)md_h->coro;
+ md_h->coro=NULL;
+ triton_coroutine_wakeup(id);
+ }else
+ #endif
+ {
+ md_h->handler->write(md_h->handler);
+ }
+ }
+ md_h->in_handler=0;
+ if (_break) return;
+ }
+ }
+//check_timeout:
+
+ for(p1=handlers.next; p1!=&handlers;)
+ {
+ md_h=list_entry(p1,struct md_handler_t,entry);
+ p1=p1->next;
+ if (md_h->del)
+ {
+ list_del(&md_h->entry);
+ free(md_h);
+ }
+ }
+
+ if (!wait) _break=1;
+}
+
+void triton_process_events(void)
+{
+ _triton_process_events(0);
+}
+
+void md_terminate()
+{
+ md_term=1;
+}
+
+void triton_md_register_handler(struct triton_md_handler_t *h)
+{
+ struct md_handler_t *md_h;
+
+ list_for_each_entry(md_h,&handlers,entry)
+ {
+ if (md_h->handler==h)
+ {
+ if (!md_h->del)
+ {
+ printf("triton: bug: double triton_md_register_handler\n");
+ abort();
+ }
+ md_h->del=0;
+ md_h->in_handler=0;
+ md_h->coro=0;
+ md_h->fd=0;
+ return;
+ }
+ }
+
+ md_h=(struct md_handler_t *)malloc(sizeof(struct md_handler_t));
+ memset(md_h,0,sizeof(*md_h));
+ md_h->handler=h;
+
+ list_add_tail(&md_h->entry,&handlers);
+}
+void triton_md_unregister_handler(struct triton_md_handler_t *h)
+{
+ struct md_handler_t *md_h;
+
+ list_for_each_entry(md_h,&handlers,entry)
+ {
+ if (md_h->handler==h)
+ {
+ triton_md_disable_handler(h,0);
+ /*list_del(&md_h->entry);
+ free(md_h);
+ return;*/
+ md_h->del=1;
+ return;
+ }
+ }
+}
+void triton_md_enable_handler(struct triton_md_handler_t *h, int mode)
+{
+ struct md_handler_t *md_h;
+
+ list_for_each_entry(md_h,&handlers,entry)
+ {
+ if (md_h->handler==h)
+ {
+ md_h->fd=h->fd;
+ break;
+ }
+ }
+ if (mode)
+ {
+ if (mode&MD_MODE_READ)
+ FD_SET(h->fd,&read_fds);
+ if (mode&MD_MODE_WRITE)
+ FD_SET(h->fd,&write_fds);
+ }else
+ {
+ FD_SET(h->fd,&read_fds);
+ FD_SET(h->fd,&write_fds);
+ }
+}
+void triton_md_disable_handler(struct triton_md_handler_t *h,int mode)
+{
+ if (mode)
+ {
+ if (mode&MD_MODE_READ)
+ FD_CLR(h->fd,&read_fds);
+ if (mode&MD_MODE_WRITE)
+ FD_CLR(h->fd,&write_fds);
+ }else
+ {
+ FD_CLR(h->fd,&read_fds);
+ FD_CLR(h->fd,&write_fds);
+ }
+}
+
+#ifdef USE_CORO
+int triton_md_wait(struct triton_md_handler_t *h)
+{
+ struct md_handler_t *md_h;
+ int res=0;
+
+ list_for_each_entry(md_h,&handlers,entry)
+ {
+ if (md_h->handler==h) break;
+ }
+
+ md_h->in_handler=0;
+
+ md_h->coro=current_coro;
+ triton_coroutine_schedule();
+
+ if (FD_ISSET(md_h->fd,&read_fds0)) res|=MD_MODE_READ;
+ if (FD_ISSET(md_h->fd,&write_fds0)) res|=MD_MODE_WRITE;
+ return res;
+}
+int triton_md_wait2(int fd,int mode,int timeout)
+{
+ int r;
+ struct triton_md_handler_t h=
+ {
+ .fd=fd,
+ .twait=timeout,
+ };
+ triton_md_register_handler(&h);
+ triton_md_enable_handler(&h,mode);
+ r=triton_md_wait(&h);
+ triton_md_unregister_handler(&h);
+ return r;
+}
+#endif
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