Fault manager (#11)

* Commit Logs
- Created New branch for fault handling
- Make file rule def for .out files clean up (come up with a better name)

* commit logs
- makefile clean up
- change executable name to foo.out
- updated os.h

* Commit logs
fault manager handels
common header files
Makefile modified

Co-authored-by: jar3m <[email protected]>

Author: srjsrini

common/Makefile

@@ -7,17 +7,24 @@ common_ARCHIVE=$(PROJ_PATH)/common/bin/common.a
 logger_SRC=src/logger.c
 logger_OBJ=bin/logger.o
 
+fault_SRC=src/fault_manager.c
+fault_OBJ=bin/fault_manager.o
+
 common_ARCHIVE=$(PROJ_PATH)/common/bin/common.a
 
 OBJS=$(common_OBJ)
 OBJS+=$(logger_OBJ)
+OBJS+=$(fault_OBJ)
 
 $(common_OBJ): $(common_SRC)
 	$(CC) $(INCLUDES) -c $^ -o $@ $(CFLAGS)
 
 $(logger_OBJ): $(logger_SRC)
 	$(CC) $(INCLUDES) -c $^ -o $@ $(CFLAGS)
 
+$(fault_OBJ): $(fault_SRC)
+	$(CC) $(INCLUDES) -c $^ -o $@ $(CFLAGS)
+
 all: $(OBJS)
 	@echo "building common"
 	ar rcs $(common_ARCHIVE) $(OBJS)

common/inc/common.h

@@ -1,4 +1,4 @@
 #include "os.h"
 #include "typedefs.h"
 #include "logger.h"
-
+#include "fault_manager.h"

common/inc/fault_manager.h

@@ -0,0 +1,7 @@
+#pragma once
+#include <os.h>
+
+typedef void (*f_fault_handle)(int,siginfo_t *,void *);
+
+
+void fault_manager_init(f_fault_handle h);

common/src/fault_manager.c

@@ -0,0 +1,66 @@
+#include <fault_manager.h>
+static struct sigaction action = {0};
+
+void dummy_fault_handler()
+{
+
+	// closing_logger_manager
+	// closing_memory_manager
+	// gracefulexit
+	printf("gracefullexit\n");
+}
+
+void default_fault_handler(int signo, siginfo_t *info, void *extra)
+{
+	printf("Signal %d received\n", signo);
+	dummy_fault_handler();
+	abort();
+}
+
+
+
+void fault_manager_init(f_fault_handle handler)
+{
+
+	if (handler == NULL) {
+		printf("fault_handler_undefined using deafult_fault_handler\n");
+		handler = default_fault_handler;
+		
+	}
+
+	action.sa_flags = SA_SIGINFO;
+	action.sa_sigaction = handler;
+
+	if (sigaction(SIGFPE, &action, NULL) == -1) {
+		perror("sigfpe: sigaction");
+		exit(1);
+	}
+	if (sigaction(SIGSEGV, &action, NULL) == -1) {
+		perror("sigsegv: sigaction");
+		exit(1);
+	}
+	if (sigaction(SIGILL, &action, NULL) == -1) {
+		perror("sigill: sigaction");
+		exit(1);
+	}
+	if (sigaction(SIGINT, &action, NULL) == -1) {
+		perror("sigint: sigaction");
+		exit(1);
+	}
+	if (sigaction(SIGTERM, &action, NULL) == -1) {
+		perror("sigterm: sigaction");
+		exit(1);
+	}
+}
+
+/* TODO enchancment:
+- mechanism for handling multiple signals
+- mechanism mutiple handlers for multiple signals
+- create fault_manager close
+- module to register routine to be called when fault
+- 
+
+*/
+
+
+

test/src/test.c

@@ -1,9 +1,12 @@
 #include "common.h"
 
-
 int main(int argc, char *argv[])
 {
 	printf("Hello World\n");
+
 	logger_init();
+	fault_manager_init(NULL);
+
 	return 0;
+
 }