libsheepy

commit fefad43845f8366294c0b5a9789d9cfedead9193
parent ee5f52fdf0b71a6c52b68e3af6d25e6195f46f76
Author: Remy Noulin <loader2x@gmail.com>
Date:   Thu,  9 Dec 2021 17:12:24 +0200

add enableCoreDump function

release/libsheepy.c | 31 +++++++++++++++++++++++++++++++
release/libsheepy.h |  5 ++++-
src/libsheepy.c     | 31 +++++++++++++++++++++++++++++++
src/libsheepy.h     |  5 ++++-
4 files changed, 70 insertions(+), 2 deletions(-)

Diffstat:
M
release/libsheepy.c
 | 
31
+++++++++++++++++++++++++++++++
M
release/libsheepy.h
 | 
5
++++-
M
src/libsheepy.c
 | 
31
+++++++++++++++++++++++++++++++
M
src/libsheepy.h
 | 
5
++++-

4 files changed, 70 insertions(+), 2 deletions(-)
diff --git a/release/libsheepy.c b/release/libsheepy.c
@@ -111,6 +111,7 @@ void initLibsheepyF(const char *progPath, initLibsheepyObjectP initF);
 void finalizeLibsheepyCharAtExit(void);
 int64_t getStackLimit(void);
 int setStackLimit(int64_t stackSize);
+int enableCoreDump(void);
 const char *getProgName(void);
 bool setProgName(const char *name);
 void setDefaultProgName(void);
@@ -1653,6 +1654,36 @@ int setStackLimit(int64_t stackSize) {
   return(1);
 }
 
+/**
+ * enable core dump
+ *
+ * change core dump size to infinity to enable core dump.
+ * After the program receives a signal generating core dump,
+ * a core file is written to disk and can be open with gdb
+ *
+ * \return
+ *   !0 when ok
+ *   0 when it failed
+ */
+int enableCoreDump(void) {
+
+  // enable core dump
+  struct rlimit limit;
+  if (getrlimit(RLIMIT_CORE, &limit) == -1) {
+    pFuncError
+    return(0);
+  }
+
+  // dump the complete process memory
+  limit.rlim_cur = RLIM_INFINITY;
+  if (setrlimit(RLIMIT_CORE, &limit) == -1) {
+    pFuncError
+    return(0);
+  }
+
+  return(1);
+}
+
 
 /**
  * get program name
diff --git a/release/libsheepy.h b/release/libsheepy.h
@@ -98,7 +98,7 @@
 
 // version accoring to the version package: Release.Major.minor.patch
 // https://noulin.net/version/file/README.md.html
-#define LIBSHEEPY_VERSION "2.2.6.4"
+#define LIBSHEEPY_VERSION "2.2.7"
 
 #ifndef SH_PREFIX
 #define SH_PREFIX(NAME) NAME
@@ -1563,6 +1563,9 @@ int64_t getStackLimit(void) MUST_CHECK;
 // set stack limit (-1 for unlimited) - returns 0 when error
 int setStackLimit(int64_t stackSize) MUST_CHECK;
 
+// enable core dump
+int enableCoreDump(void) MUST_CHECK;
+
 // get program name
 const char *getProgName(void) MUST_CHECK;
 
diff --git a/src/libsheepy.c b/src/libsheepy.c
@@ -113,6 +113,7 @@ void initLibsheepyF(const char *progPath, initLibsheepyObjectP initF);
 void finalizeLibsheepyCharAtExit(void);
 int64_t getStackLimit(void);
 int setStackLimit(int64_t stackSize);
+int enableCoreDump(void);
 const char *getProgName(void);
 bool setProgName(const char *name);
 void setDefaultProgName(void);
@@ -1709,6 +1710,36 @@ int setStackLimit(int64_t stackSize) {
   return(1);
 }
 
+/**
+ * enable core dump
+ *
+ * change core dump size to infinity to enable core dump.
+ * After the program receives a signal generating core dump,
+ * a core file is written to disk and can be open with gdb
+ *
+ * \return
+ *   !0 when ok
+ *   0 when it failed
+ */
+int enableCoreDump(void) {
+
+  // enable core dump
+  struct rlimit limit;
+  if (getrlimit(RLIMIT_CORE, &limit) == -1) {
+    pFuncError
+    return(0);
+  }
+
+  // dump the complete process memory
+  limit.rlim_cur = RLIM_INFINITY;
+  if (setrlimit(RLIMIT_CORE, &limit) == -1) {
+    pFuncError
+    return(0);
+  }
+
+  return(1);
+}
+
 
 /**
  * get program name
diff --git a/src/libsheepy.h b/src/libsheepy.h
@@ -98,7 +98,7 @@
 
 // version accoring to the version package: Release.Major.minor.patch
 // https://noulin.net/version/file/README.md.html
-#define LIBSHEEPY_VERSION "2.2.6.4"
+#define LIBSHEEPY_VERSION "2.2.7"
 
 #ifndef SH_PREFIX
 #define SH_PREFIX(NAME) NAME
@@ -1563,6 +1563,9 @@ int64_t getStackLimit(void) MUST_CHECK;
 // set stack limit (-1 for unlimited) - returns 0 when error
 int setStackLimit(int64_t stackSize) MUST_CHECK;
 
+// enable core dump
+int enableCoreDump(void) MUST_CHECK;
+
 // get program name
 const char *getProgName(void) MUST_CHECK;