timer

README.md

@@ -16,3 +16,19 @@ Logs are in one of the following directories: `$XDG_DATA_HOME/ipc/` or `$HOME/.l
 The log file can be indicated with the `IPC_LOGFILE` environment variable, too.
 
 To remove logs: `make LDFLAGS=-DIPC_WITHOUT_ERRORS`
+
+# Planning for 0.7
+
+- `libipc` should have callbacks to use along with switching capabilities, making easier to implement proxies with communication protocols
+
+# Planning for 0.8
+
+- `libipc` should be thread-safe
+
+# Planning for 0.8
+
+- `libipc` should use `libevent` for performance improvments
+
+# Planning for 1.0
+
+- `libipc` should have usable bindings in several languages

src/communication.c

@@ -1,4 +1,5 @@
 #include <sys/select.h>
+#include <sys/time.h>
 #include <unistd.h>
 
 #include <stdio.h>
@@ -467,10 +468,29 @@ struct ipc_error ipc_events_loop (struct ipc_ctx *ctx, struct ipc_event *event,
 		}
 	}
 
+	struct timeval tv_1;
+	memset (&tv_1, 0, sizeof(struct timeval));
+
+	struct timeval tv_2;
+	memset (&tv_2, 0, sizeof(struct timeval));
+
+	gettimeofday(&tv_1, NULL);
+
 	if ((n = poll(ctx->pollfd, ctx->size, *timer)) < 0) {
 		IPC_RETURN_ERROR (IPC_ERROR_WAIT_EVENT__POLL);
 	}
 
+	gettimeofday(&tv_2, NULL);
+
+	int new_timer = *timer - ((tv_2.tv_sec - tv_1.tv_sec) * 1000000 + (tv_2.tv_usec - tv_1.tv_usec)) / 1000;
+	// Handle memory fuckery, 'cause low level programming is fun.
+	if (new_timer >= *timer || new_timer < 0) {
+		*timer = 0;
+	}
+	else {
+		*timer = new_timer;
+	}
+
 	// Timeout.
 	if (n == 0) {
 		IPC_EVENT_SET (event, IPC_EVENT_TYPE_TIMER, 0, 0, NULL);