sw:lib: constify function arguments and return value

For these function there is not need, actually is dangerous, to touch the given char pointer. Make it constant to avoid mistakes. Signed-off-by: Tristan Gingold <tristan.gingold@cern.ch> Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

sw:lib: constify function arguments and return value
For these function there is not need, actually is dangerous, to touch the given char pointer. Make it constant to avoid mistakes. Signed-off-by: Tristan Gingold <tristan.gingold@cern.ch> Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
b43e98b4 · Tristan Gingold · Federico Vaga · bb80c5b3 · b43e98b4 · b43e98b4
Commit b43e98b4 authored Oct 16, 2018 by Tristan Gingold Committed by Federico Vaga Feb 04, 2019
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Showing with 9 additions and 9 deletions

libmockturtle.c software/lib/libmockturtle.c +5 -5

libmockturtle.h software/lib/libmockturtle.h +4 -4

No files found.
--- a/software/lib/libmockturtle.c
+++ b/software/lib/libmockturtle.c
@@ -36,7 +36,7 @@ const unsigned int trtl_default_timeout_ms = 1000;
 /**
 * Mock Turtle error code strings
 */
-static char *trtl_error_str[] = {
+static const char * const trtl_error_str[] = {
 	"Cannot parse data from sysfs attribute",
 	"Invalid slot",
 	"Operation not yet implemented",
@@ -92,7 +92,7 @@ static int trtl_sysfs_write(char *path, void *buf, size_t len);
 * @param[in] err error code. Typically 'errno' variable
 * @return a message error. No need to free the string.
 */
-char *trtl_strerror(int err)
+const char *trtl_strerror(int err)
 {
 	if (err < ETRTL_INVAL_PARSE || err > __ETRTL_MAX)
 		return strerror(err);
@@ -575,7 +575,7 @@ int trtl_cpu_reset_set(struct trtl_dev *trtl, uint32_t mask)
 */
 int trtl_cpu_load_application_raw(struct trtl_dev *trtl,
 				  unsigned int index,
-				  void *code, size_t length,
+				  const void *code, size_t length,
 				  unsigned int offset)
 {
 	struct trtl_desc *wdesc = (struct trtl_desc *)trtl;
@@ -658,7 +658,7 @@ int trtl_cpu_dump_application_raw(struct trtl_dev *trtl,
 */
 int trtl_cpu_load_application_file(struct trtl_dev *trtl,
 				   unsigned int index,
-				   char *path)
+				   const char *path)
 {
 	int i, len;
 	void *code;
@@ -709,7 +709,7 @@ int trtl_cpu_load_application_file(struct trtl_dev *trtl,
 */
 int trtl_cpu_dump_application_file(struct trtl_dev *trtl,
 				   unsigned int index,
-				   char *path)
+				   const char *path)
 {
 	int i = 0;
 	uint8_t code[4096];

--- a/software/lib/libmockturtle.h
+++ b/software/lib/libmockturtle.h
@@ -101,7 +101,7 @@ const struct trtl_config_rom *trtl_config_get(struct trtl_dev *trtl);
 extern void trtl_print_header(struct trtl_msg *msg);
 extern void trtl_print_payload(struct trtl_msg *msg);
 extern void trtl_print_message(struct trtl_msg *msg);
-extern char *trtl_strerror(int err);
+extern const char *trtl_strerror(int err);
 /**@}*/
 /**
@@ -111,18 +111,18 @@ extern char *trtl_strerror(int err);
 */
 extern int trtl_cpu_load_application_raw(struct trtl_dev *trtl,
 					 unsigned int index,
-					 void *code, size_t length,
+					 const void *code, size_t length,
 					 unsigned int offset);
 extern int trtl_cpu_load_application_file(struct trtl_dev *trtl,
 					  unsigned int index,
-					  char *path);
+					  const char *path);
 extern int trtl_cpu_dump_application_raw(struct trtl_dev *trtl,
 					 unsigned int index,
 					 void *code, size_t length,
 					 unsigned int offset);
 extern int trtl_cpu_dump_application_file(struct trtl_dev *trtl,
 					  unsigned int index,
-					  char *path);
+					  const char *path);
 extern int trtl_cpu_reset_set(struct trtl_dev *trtl, uint32_t mask);
 extern int trtl_cpu_reset_get(struct trtl_dev *trtl, uint32_t *mask);