increase number of maximum opened files to system maximum

link log_file with libaio
updated documentation

2 files changed, 24 insertions, 0 deletions

diff --git a/accel-pptpd/logs/CMakeLists.txt b/accel-pptpd/logs/CMakeLists.txt
index f1b09ca..58c663b 100644
--- a/accel-pptpd/logs/CMakeLists.txt
+++ b/accel-pptpd/logs/CMakeLists.txt
@@ -1,4 +1,6 @@
 ADD_LIBRARY(log_file SHARED log_file.c)
+TARGET_LINK_LIBRARIES(log_file aio)
+
 INSTALL(TARGETS log_file
 	LIBRARY DESTINATION usr/lib/accel-pptp
 )
diff --git a/accel-pptpd/main.c b/accel-pptpd/main.c
index e261fbb..ede3732 100644
--- a/accel-pptpd/main.c
+++ b/accel-pptpd/main.c
@@ -3,8 +3,10 @@
 #include <unistd.h>
 #include <stdlib.h>
 #include <stdio.h>
+#include <errno.h>
 #include <sys/stat.h>
 #include <sys/mman.h>
+#include <sys/resource.h>
 
 #include "triton/triton.h"
 
@@ -81,6 +83,24 @@ usage:
 		-c - config file\n");
 	_exit(EXIT_FAILURE);
 }
+
+static void change_limits(void)
+{
+	FILE *f;
+	struct rlimit lim;
+	unsigned int file_max;
+
+	f = fopen("/proc/sys/fs/file-max", "r");
+	if (f) {
+		fscanf(f, "%d", &file_max);
+		fclose(f);
+
+		if (setrlimit(RLIMIT_NOFILE, &lim))
+			log_emerg("main: setrlimit: %s", strerror(errno));
+	} else
+		log_emerg("main: failed to open '/proc/sys/fs/file-max': %s\n", strerror(errno));
+}
+
 int main(int argc, char **argv)
 {
 	sigset_t set;
@@ -118,6 +138,8 @@ int main(int argc, char **argv)
 	//signal(SIGTERM, sigterm);
 	//signal(SIGPIPE, sigterm);
 
+	change_limits();
+
 	if (triton_load_modules("modules"))
 		return EXIT_FAILURE;