chore: please cppcheck

lsm/src/store/lsm_store_disk_read.c

@@ -47,6 +47,8 @@ lsm_error lsm_store_load(lsm_store **ptr, lsm_str *data_path) {
     idx_file = fopen(idx_file_path, "wb");
 
     if (idx_file == NULL) {
+      fclose(db_file);
+
       return lsm_error_failed_io;
     }
 
@@ -55,6 +57,9 @@ lsm_error lsm_store_load(lsm_store **ptr, lsm_str *data_path) {
     uint64_t num = 0;
 
     if (fwrite(&num, sizeof(uint64_t), 1, idx_file) == 0) {
+      fclose(db_file);
+      fclose(idx_file);
+
       return lsm_error_failed_io;
     }
 
@@ -65,6 +70,8 @@ lsm_error lsm_store_load(lsm_store **ptr, lsm_str *data_path) {
     idx_file = fopen(idx_file_path, "r+b");
 
     if (idx_file == NULL) {
+      fclose(db_file);
+
       return lsm_error_failed_io;
     }
   }
@@ -73,7 +80,10 @@ lsm_error lsm_store_load(lsm_store **ptr, lsm_str *data_path) {
   store->db.f = db_file;
   store->idx.f = idx_file;
 
-  LSM_RES(lsm_store_load_db(store));
+  LSM_RES2(lsm_store_load_db(store), {
+    fclose(db_file);
+    fclose(idx_file);
+  });
 
   *ptr = store;
 

lsm/src/store/lsm_store_disk_write.c

@@ -1,7 +1,7 @@
 #include "lsm/store_internal.h"
 
 static lsm_error lsm_fwrite(uint64_t *sum, FILE *f, uint64_t size,
-                            uint64_t count, void *val) {
+                            uint64_t count, const void *val) {
   size_t res = fwrite(val, size, count, f);
 
   if (res < count) {
@@ -15,7 +15,7 @@ static lsm_error lsm_fwrite(uint64_t *sum, FILE *f, uint64_t size,
   return lsm_error_ok;
 }
 
-static lsm_error lsm_write_str(uint64_t *sum, FILE *f, lsm_str *s) {
+static lsm_error lsm_write_str(uint64_t *sum, FILE *f, const lsm_str *s) {
   uint64_t len = lsm_str_len(s);
 
   LSM_RES(lsm_fwrite(sum, f, sizeof(uint64_t), 1, &len));
@@ -129,7 +129,7 @@ lsm_error lsm_entry_disk_insert(lsm_entry_handle *handle) {
 // its entry to zero
 lsm_error lsm_entry_disk_remove(lsm_entry_handle *handle) {
   lsm_store *store = handle->store;
-  lsm_entry *entry = handle->wrapper->entry;
+  const lsm_entry *entry = handle->wrapper->entry;
 
   pthread_mutex_lock(&store->idx.lock);
 

lsm/src/store/lsm_store_entry.c

@@ -247,7 +247,7 @@ void lsm_entry_data_path(char *path, const lsm_entry_handle *handle) {
   const lsm_str *key = handle->wrapper->entry->key;
 
   uint8_t levels =
-      key->len <= LSM_STORE_DATA_LEVELS ? key->len : LSM_STORE_DATA_LEVELS;
+      key->len > LSM_STORE_DATA_LEVELS ? LSM_STORE_DATA_LEVELS : key->len;
 
   memcpy(path, lsm_str_ptr(data_path), data_path->len);
   path[data_path->len] = '/';
@@ -255,6 +255,7 @@ void lsm_entry_data_path(char *path, const lsm_entry_handle *handle) {
   uint64_t index = data_path->len + 1;
 
   // Create each directory in the file hierarchy
+  // cppcheck-suppress knownConditionTrueFalse
   for (uint8_t i = 0; i < levels; i++) {
     path[index] = lsm_str_char(key, i);
     path[index + 1] = '/';
@@ -279,6 +280,7 @@ lsm_error lsm_entry_data_open_write(lsm_entry_handle *handle) {
       key->len <= LSM_STORE_DATA_LEVELS ? key->len : LSM_STORE_DATA_LEVELS;
 
   // Create all required directories in the path
+  // cppcheck-suppress knownConditionTrueFalse
   for (uint8_t i = 0; i < levels; i++) {
     path[data_path->len + 2 * (i + 1)] = '\0';
 

src/main.c

@@ -9,15 +9,12 @@
   const char *var = getenv(env_var);                                           \
   if (var == NULL) {                                                           \
     critical(1, "Missing environment variable %s", env_var);                   \
-  }                                                                            \
+  }
-  var = strdup(var);
 
 #define ENV_OPT(var, env_var, default)                                         \
   const char *var = getenv(env_var);                                           \
   if (var == NULL) {                                                           \
-    var = strdup(default);                                                     \
+    var = default;                                                             \
-  } else {                                                                     \
-    var = strdup(var);                                                         \
   }
 
 int main() {