Server: Move common config file reading stuff into read_config_file().

[plomrogue] / src / server / io.c

diff --git a/src/server/io.c b/src/server/io.c
index 035f4fe1d0759436f6dc5aed53710df00e82177b..079a8339c6bd3ac28d8a8932f3f952b0a4a7fec0 100644 (file)
--- a/src/server/io.c
+++ b/src/server/io.c
@@ -5,16 +5,21 @@
 #include <limits.h> /* PIPE_BUF */
 #include <stddef.h> /* size_t, NULL */
 #include <stdint.h> /* uint8_t, uint32_t */
-#include <stdio.h> /* defines EOF, FILE, sprintf() */
-#include <stdlib.h> /* free() */
+#include <stdio.h> /* defines EOF, FILE, sprintf(), ungetc() */
+#include <stdlib.h> /* free(), atoi() */
 #include <string.h> /* strlen(), memcpy() */
 #include <sys/types.h> /* time_t */
 #include <time.h> /* time() */
+#include "../common/err_try_fgets.h" /* err_try_fgets(), err_line(),
+                                      * reset_err_try_fgets_counter()
+                                      */
 #include "../common/readwrite.h" /* try_fopen(), try_fclose_unlink_rename(),
-                                  * try_fwrite(), try_fputc(), try_fgetc()
+                                  * try_fwrite(), try_fputc(), try_fgetc(),
+                                  * try_fclose()
                                   */
+#include "../common/rexit.h" /* exit_trouble() */
 #include "../common/try_malloc.h" /* try_malloc() */
-#include "cleanup.h" /* set_cleanup_flag() */
+#include "cleanup.h" /* set_cleanup_flag(), enum cleanup_flag */
 #include "map_objects.h" /* structs MapObj, MapObjDef, get_map_obj_def() */
 #include "world.h" /* global world  */
 
@@ -218,6 +223,49 @@ static void write_map(FILE * file)
 
 
 
+extern void read_config_file(char * path, enum cleanup_flag cleanup,
+                             size_t size, struct EntrySkeleton ** entry_start,
+                             void (* read) (char *, uint32_t, char *,
+                                            struct EntrySkeleton *, FILE *))
+{
+    char * f_name = "init_map_object_defs()";
+    char * context_prefix = "Failed reading config file: ";
+    char context[strlen(context_prefix) + strlen(path) + 1];
+    sprintf(context, "%s%s", context_prefix, path);
+    char * err_uniq = "Declaration of ID already used.";
+    FILE * file = try_fopen(path, "r", f_name);
+    uint32_t linemax = textfile_width(file);
+    char line[linemax + 1];
+    reset_err_try_fgets_counter();
+    struct EntrySkeleton ** entry_ptr_ptr = entry_start;
+    while (1)
+    {
+        int test_for_end = try_fgetc(file, f_name);
+        if (EOF == test_for_end || '\n' == test_for_end)
+        {
+            break;
+        }
+        exit_trouble(EOF == ungetc(test_for_end, file), f_name, "ungetc()");
+        err_try_fgets(line, linemax, file, context, "nfi8");
+        struct EntrySkeleton * entry = try_malloc(size, f_name);
+        entry->id = atoi(line);
+        struct EntrySkeleton * entry_test = * entry_start;
+        for (; NULL != entry_test; entry_test = entry_test->next)
+        {
+            err_line(entry->id == entry_test->id, line, context, err_uniq);
+        }
+        read(line, linemax, context, entry, file);
+        entry->next = NULL;
+        * entry_ptr_ptr = entry;
+        entry_ptr_ptr = &entry->next;
+        err_try_fgets(line, linemax, file, context, "d");
+    }
+    try_fclose(file, f_name);
+    set_cleanup_flag(cleanup);
+}
+
+
+
 extern char * io_round()
 {
     char * f_name = "io_round()";