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add sigio support

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extend code to cope with edge triggered event notification
add io_eagain() so that you can notify io_wait if accept() returned EAGAIN
This commit is contained in:
leitner
2003-09-12 22:03:51 +00:00
parent 5a4d2cc732
commit 2a2e1ddc75
15 changed files with 262 additions and 32 deletions
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20
test/httpd.c
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@@ -123,6 +123,7 @@ const char* http_header(struct http_data* r,const char* h) {
if (*c==' ' || *c=='\t') ++c;
return c;
}
return 0;
}
void httpresponse(struct http_data* h,int64 s) {
@@ -225,17 +226,19 @@ main() {
}
buffer_putnlflush(buffer_2);
}
if (errno!=EAGAIN)
if (errno==EAGAIN)
io_eagain(s);
else
carp("socket_accept6");
} else {
char buf[8192];
struct http_data* h=io_getcookie(i);
int l=io_tryread(i,buf,sizeof buf);
if (l==-1) {
if (l==-3) {
if (h) {
array_reset(&h->r);
iob_reset(&h->iob);
free(h->hdrbuf);
free(h->hdrbuf); h->hdrbuf=0;
}
buffer_puts(buffer_2,"io_tryread(");
buffer_putulong(buffer_2,i);
@@ -247,13 +250,13 @@ main() {
if (h) {
array_reset(&h->r);
iob_reset(&h->iob);
free(h->hdrbuf);
free(h->hdrbuf); h->hdrbuf=0;
}
buffer_puts(buffer_2,"eof on fd #");
buffer_putulong(buffer_2,i);
buffer_putnlflush(buffer_2);
io_close(i);
} else {
} else if (l>0) {
array_catb(&h->r,buf,l);
if (array_failed(&h->r)) {
httperror(h,"500 Server Error","request too long.");
@@ -270,10 +273,13 @@ emerge:
}
while ((i=io_canwrite())!=-1) {
struct http_data* h=io_getcookie(i);
if (iob_send(i,&h->iob)<=0) {
int64 r=iob_send(i,&h->iob);
/* printf("iob_send returned %lld\n",r); */
if (r==-1) io_eagain(i);
if (r<=0) {
array_trunc(&h->r);
iob_reset(&h->iob);
free(h->hdrbuf);
free(h->hdrbuf); h->hdrbuf=0;
if (h->keepalive) {
io_dontwantwrite(i);
io_wantread(i);