Added HCache key #define

As Proposed by Gepard
Closes #63

Signed-off-by: shennetsind <ind@henn.et>

2 files changed, 6 insertions, 2 deletions

diff --git a/src/common/utils.c b/src/common/utils.c
index 30649e2f5..9e3dbac47 100644
--- a/src/common/utils.c
+++ b/src/common/utils.c
@@ -309,7 +309,7 @@ bool HCache_check(const char *file) {
 		return false;
 	}
 
-	if( fread(dT,sizeof(dT),1,second) != 1 || fread(&rtime,sizeof(rtime),1,second) != 1 || dT[0] != 'k' || HCache->recompile_time > rtime ) {
+	if( fread(dT,sizeof(dT),1,second) != 1 || fread(&rtime,sizeof(rtime),1,second) != 1 || dT[0] != HCACHE_KEY || HCache->recompile_time > rtime ) {
 		fclose(first);
 		fclose(second);
 		return false;
@@ -343,7 +343,8 @@ FILE *HCache_open(const char *file, const char *opt) {
 	}
 	
 	if( opt[0] != 'r' ) {
-		char dT[1] = "k";/* 1-byte key to ensure our method is the latest, we can modify to ensure the method matches */
+		char dT[1];/* 1-byte key to ensure our method is the latest, we can modify to ensure the method matches */
+		dT[0] = HCACHE_KEY;
 		hwrite(dT,sizeof(dT),1,first);
 		hwrite(&HCache->recompile_time,sizeof(HCache->recompile_time),1,first);
 	}
diff --git a/src/common/utils.h b/src/common/utils.h
index b1fb4e3a0..32087d78f 100644
--- a/src/common/utils.h
+++ b/src/common/utils.h
@@ -9,6 +9,9 @@
 #include <stdio.h> // FILE*
 #include <time.h>
 
+/* [HCache] 1-byte key to ensure our method is the latest, we can modify to ensure the method matches */
+#define HCACHE_KEY 'k'
+
 // generate a hex dump of the first 'length' bytes of 'buffer'
 void WriteDump(FILE* fp, const void* buffer, size_t length);
 void ShowDump(const void* buffer, size_t length);