[PATCH] Split config name parse functions into parse.c

The plan is to add command line options that mirror the config options,
so fio will be easier to script.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/Makefile b/Makefile
index 312f8de..7951751 100644
--- a/Makefile
+++ b/Makefile
@@ -3,7 +3,7 @@
 PROGS	= fio
 SCRIPTS = fio_generate_plots
 OBJS = fio.o ioengines.o init.o stat.o log.o time.o md5.o crc32.o \
-	filesetup.o eta.o verify.o memory.o io_u.o
+	filesetup.o eta.o verify.o memory.o io_u.o parse.o
 
 INSTALL = install
 prefix = /usr/local
diff --git a/init.c b/init.c
index 76d8d81..ddca4c5 100644
--- a/init.c
+++ b/init.c
@@ -1,6 +1,5 @@
 /*
- * This file contains the ini and command liner parser. It will create
- * and initialize the specified jobs.
+ * This file contains job initialization and setup functions.
  */
 #include <stdio.h>
 #include <stdlib.h>
@@ -15,6 +14,7 @@
 #include <sys/stat.h>
 
 #include "fio.h"
+#include "parse.h"
 
 /*
  * The default options
@@ -336,230 +336,6 @@
 #endif
 }
 
-static unsigned long get_mult_time(char c)
-{
-	switch (c) {
-		case 'm':
-		case 'M':
-			return 60;
-		case 'h':
-		case 'H':
-			return 60 * 60;
-		case 'd':
-		case 'D':
-			return 24 * 60 * 60;
-		default:
-			return 1;
-	}
-}
-
-static unsigned long get_mult_bytes(char c)
-{
-	switch (c) {
-		case 'k':
-		case 'K':
-			return 1024;
-		case 'm':
-		case 'M':
-			return 1024 * 1024;
-		case 'g':
-		case 'G':
-			return 1024 * 1024 * 1024;
-		default:
-			return 1;
-	}
-}
-
-/*
- * convert string after '=' into decimal value, noting any size suffix
- */
-static int str_to_decimal(char *p, unsigned long long *val, int kilo)
-{
-	char *str;
-	int len;
-
-	str = strchr(p, '=');
-	if (!str)
-		return 1;
-
-	str++;
-	len = strlen(str);
-
-	*val = strtoul(str, NULL, 10);
-	if (*val == ULONG_MAX && errno == ERANGE)
-		return 1;
-
-	if (kilo)
-		*val *= get_mult_bytes(str[len - 1]);
-	else
-		*val *= get_mult_time(str[len - 1]);
-	return 0;
-}
-
-static int check_str_bytes(char *p, char *name, unsigned long long *val)
-{
-	if (strncmp(p, name, strlen(name) - 1))
-		return 1;
-
-	return str_to_decimal(p, val, 1);
-}
-
-static int check_str_time(char *p, char *name, unsigned long long *val)
-{
-	if (strncmp(p, name, strlen(name) - 1))
-		return 1;
-
-	return str_to_decimal(p, val, 0);
-}
-
-static void strip_blank_front(char **p)
-{
-	char *s = *p;
-
-	while (isspace(*s))
-		s++;
-}
-
-static void strip_blank_end(char *p)
-{
-	char *s = p + strlen(p) - 1;
-
-	while (isspace(*s) || iscntrl(*s))
-		s--;
-
-	*(s + 1) = '\0';
-}
-
-typedef int (str_cb_fn)(struct thread_data *, char *);
-
-static int check_str(char *p, char *name, str_cb_fn *cb, struct thread_data *td)
-{
-	char *s;
-
-	if (strncmp(p, name, strlen(name)))
-		return 1;
-
-	s = strstr(p, name);
-	if (!s)
-		return 1;
-
-	s = strchr(s, '=');
-	if (!s)
-		return 1;
-
-	s++;
-	strip_blank_front(&s);
-	return cb(td, s);
-}
-
-static int check_strstore(char *p, char *name, char *dest)
-{
-	char *s;
-
-	if (strncmp(p, name, strlen(name)))
-		return 1;
-
-	s = strstr(p, name);
-	if (!s)
-		return 1;
-
-	s = strchr(p, '=');
-	if (!s)
-		return 1;
-
-	s++;
-	strip_blank_front(&s);
-
-	strcpy(dest, s);
-	return 0;
-}
-
-static int __check_range_bytes(char *str, unsigned long *val)
-{
-	char suffix;
-
-	if (sscanf(str, "%lu%c", val, &suffix) == 2) {
-		*val *= get_mult_bytes(suffix);
-		return 0;
-	}
-
-	if (sscanf(str, "%lu", val) == 1)
-		return 0;
-
-	return 1;
-}
-
-static int check_range_bytes(char *p, char *name, unsigned long *s,
-			     unsigned long *e)
-{
-	char option[128];
-	char *str, *p1, *p2;
-
-	if (strncmp(p, name, strlen(name)))
-		return 1;
-
-	strcpy(option, p);
-	p = option;
-
-	str = strstr(p, name);
-	if (!str)
-		return 1;
-
-	p += strlen(name);
-
-	str = strchr(p, '=');
-	if (!str)
-		return 1;
-
-	/*
-	 * 'p' now holds whatever is after the '=' sign
-	 */
-	p1 = str + 1;
-
-	/*
-	 * terminate p1 at the '-' sign
-	 */
-	p = strchr(p1, '-');
-	if (!p)
-		return 1;
-
-	p2 = p + 1;
-	*p = '\0';
-
-	if (!__check_range_bytes(p1, s) && !__check_range_bytes(p2, e))
-		return 0;
-
-	return 1;
-}
-
-static int check_int(char *p, char *name, unsigned int *val)
-{
-	char *str;
-
-	if (strncmp(p, name, strlen(name)))
-		return 1;
-
-	str = strstr(p, name);
-	if (!str)
-		return 1;
-
-	str = strchr(p, '=');
-	if (!str)
-		return 1;
-
-	str++;
-
-	if (sscanf(str, "%u", val) == 1)
-		return 0;
-
-	return 1;
-}
-
-static int check_strset(char *p, char *name)
-{
-	return strncmp(p, name, strlen(name));
-}
-
 static int is_empty_or_comment(char *line)
 {
 	unsigned int i;
@@ -574,8 +350,10 @@
 	return 1;
 }
 
-static int str_rw_cb(struct thread_data *td, char *mem)
+static int str_rw_cb(void *data, char *mem)
 {
+	struct thread_data *td = data;
+
 	if (!strncmp(mem, "read", 4) || !strncmp(mem, "0", 1)) {
 		td->ddir = DDIR_READ;
 		td->sequential = 1;
@@ -608,8 +386,10 @@
 	return 1;
 }
 
-static int str_verify_cb(struct thread_data *td, char *mem)
+static int str_verify_cb(void *data, char *mem)
 {
+	struct thread_data *td = data;
+
 	if (!strncmp(mem, "0", 1)) {
 		td->verify = VERIFY_NONE;
 		return 0;
@@ -625,8 +405,10 @@
 	return 1;
 }
 
-static int str_mem_cb(struct thread_data *td, char *mem)
+static int str_mem_cb(void *data, char *mem)
 {
+	struct thread_data *td = data;
+
 	if (!strncmp(mem, "malloc", 6)) {
 		td->mem_type = MEM_MALLOC;
 		return 0;
@@ -642,8 +424,10 @@
 	return 1;
 }
 
-static int str_ioengine_cb(struct thread_data *td, char *str)
+static int str_ioengine_cb(void *data, char *str)
 {
+	struct thread_data *td = data;
+
 	td->io_ops = load_ioengine(td, str);
 	if (td->io_ops)
 		return 0;
diff --git a/parse.c b/parse.c
new file mode 100644
index 0000000..82cdf8a
--- /dev/null
+++ b/parse.c
@@ -0,0 +1,234 @@
+/*
+ * This file contains the ini and command liner parser main.
+ */
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <string.h>
+#include <errno.h>
+#include <limits.h>
+
+#include "parse.h"
+
+static unsigned long get_mult_time(char c)
+{
+	switch (c) {
+		case 'm':
+		case 'M':
+			return 60;
+		case 'h':
+		case 'H':
+			return 60 * 60;
+		case 'd':
+		case 'D':
+			return 24 * 60 * 60;
+		default:
+			return 1;
+	}
+}
+
+static unsigned long get_mult_bytes(char c)
+{
+	switch (c) {
+		case 'k':
+		case 'K':
+			return 1024;
+		case 'm':
+		case 'M':
+			return 1024 * 1024;
+		case 'g':
+		case 'G':
+			return 1024 * 1024 * 1024;
+		default:
+			return 1;
+	}
+}
+
+/*
+ * convert string after '=' into decimal value, noting any size suffix
+ */
+static int str_to_decimal(char *p, unsigned long long *val, int kilo)
+{
+	char *str;
+	int len;
+
+	str = strchr(p, '=');
+	if (!str)
+		return 1;
+
+	str++;
+	len = strlen(str);
+
+	*val = strtoul(str, NULL, 10);
+	if (*val == ULONG_MAX && errno == ERANGE)
+		return 1;
+
+	if (kilo)
+		*val *= get_mult_bytes(str[len - 1]);
+	else
+		*val *= get_mult_time(str[len - 1]);
+	return 0;
+}
+
+int check_str_bytes(char *p, char *name, unsigned long long *val)
+{
+	if (strncmp(p, name, strlen(name) - 1))
+		return 1;
+
+	return str_to_decimal(p, val, 1);
+}
+
+int check_str_time(char *p, char *name, unsigned long long *val)
+{
+	if (strncmp(p, name, strlen(name) - 1))
+		return 1;
+
+	return str_to_decimal(p, val, 0);
+}
+
+void strip_blank_front(char **p)
+{
+	char *s = *p;
+
+	while (isspace(*s))
+		s++;
+}
+
+void strip_blank_end(char *p)
+{
+	char *s = p + strlen(p) - 1;
+
+	while (isspace(*s) || iscntrl(*s))
+		s--;
+
+	*(s + 1) = '\0';
+}
+
+int check_str(char *p, char *name, str_cb_fn *cb, void *data)
+{
+	char *s;
+
+	if (strncmp(p, name, strlen(name)))
+		return 1;
+
+	s = strstr(p, name);
+	if (!s)
+		return 1;
+
+	s = strchr(s, '=');
+	if (!s)
+		return 1;
+
+	s++;
+	strip_blank_front(&s);
+	return cb(data, s);
+}
+
+int check_strstore(char *p, char *name, char *dest)
+{
+	char *s;
+
+	if (strncmp(p, name, strlen(name)))
+		return 1;
+
+	s = strstr(p, name);
+	if (!s)
+		return 1;
+
+	s = strchr(p, '=');
+	if (!s)
+		return 1;
+
+	s++;
+	strip_blank_front(&s);
+
+	strcpy(dest, s);
+	return 0;
+}
+
+static int __check_range_bytes(char *str, unsigned long *val)
+{
+	char suffix;
+
+	if (sscanf(str, "%lu%c", val, &suffix) == 2) {
+		*val *= get_mult_bytes(suffix);
+		return 0;
+	}
+
+	if (sscanf(str, "%lu", val) == 1)
+		return 0;
+
+	return 1;
+}
+
+int check_range_bytes(char *p, char *name, unsigned long *s, unsigned long *e)
+{
+	char option[128];
+	char *str, *p1, *p2;
+
+	if (strncmp(p, name, strlen(name)))
+		return 1;
+
+	strcpy(option, p);
+	p = option;
+
+	str = strstr(p, name);
+	if (!str)
+		return 1;
+
+	p += strlen(name);
+
+	str = strchr(p, '=');
+	if (!str)
+		return 1;
+
+	/*
+	 * 'p' now holds whatever is after the '=' sign
+	 */
+	p1 = str + 1;
+
+	/*
+	 * terminate p1 at the '-' sign
+	 */
+	p = strchr(p1, '-');
+	if (!p)
+		return 1;
+
+	p2 = p + 1;
+	*p = '\0';
+
+	if (!__check_range_bytes(p1, s) && !__check_range_bytes(p2, e))
+		return 0;
+
+	return 1;
+}
+
+int check_int(char *p, char *name, unsigned int *val)
+{
+	char *str;
+
+	if (strncmp(p, name, strlen(name)))
+		return 1;
+
+	str = strstr(p, name);
+	if (!str)
+		return 1;
+
+	str = strchr(p, '=');
+	if (!str)
+		return 1;
+
+	str++;
+
+	if (sscanf(str, "%u", val) == 1)
+		return 0;
+
+	return 1;
+}
+
+int check_strset(char *p, char *name)
+{
+	return strncmp(p, name, strlen(name));
+}
+