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authorJannis Hoffmann <jannis@fehcom.de>2024-07-09 13:58:20 +0200
committerJannis Hoffmann <jannis@fehcom.de>2024-07-09 13:58:20 +0200
commit249866e3d1e11dc72eaa1305f4bb479ded92ef38 (patch)
tree7118c5f58e29fe61c100e4d067bb90ba8d52589e /src/timeout.c
parent96cf8dffe4f7b0b910f790066ae622dc429eb522 (diff)
reorganized file structure
Moved c files into src/. Corrected VERSION file. Removed BUILD and FILES.
Diffstat (limited to 'src/timeout.c')
-rw-r--r--src/timeout.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/src/timeout.c b/src/timeout.c
new file mode 100644
index 0000000..e721b66
--- /dev/null
+++ b/src/timeout.c
@@ -0,0 +1,59 @@
+#include <unistd.h>
+#include "error.h"
+#include "iopause.h"
+#include "timeout.h"
+
+/**
+ @file timeout.c
+ @author djb
+ @source qmail
+ @brief read/write timeout handling
+*/
+
+int timeoutread(int t,int fd,char *buf,int len)
+{
+ struct taia now;
+ struct taia deadline;
+ iopause_fd x;
+
+ taia_now(&now);
+ taia_uint(&deadline,t);
+ taia_add(&deadline,&now,&deadline);
+
+ x.fd = fd;
+ x.events = IOPAUSE_READ;
+ for (;;) {
+ taia_now(&now);
+ iopause(&x,1,&deadline,&now);
+ if (x.revents) break;
+ if (taia_less(&deadline,&now)) {
+ errno = ETIMEDOUT;
+ return -1;
+ }
+ }
+ return read(fd,buf,len);
+}
+
+int timeoutwrite(int t,int fd,char *buf,int len)
+{
+ struct taia now;
+ struct taia deadline;
+ iopause_fd x;
+
+ taia_now(&now);
+ taia_uint(&deadline,t);
+ taia_add(&deadline,&now,&deadline);
+
+ x.fd = fd;
+ x.events = IOPAUSE_WRITE;
+ for (;;) {
+ taia_now(&now);
+ iopause(&x,1,&deadline,&now);
+ if (x.revents) break;
+ if (taia_less(&deadline,&now)) {
+ errno = ETIMEDOUT;
+ return -1;
+ }
+ }
+ return write(fd,buf,len);
+}