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[Qemu-devel] [PATCH 5/8] qemu-option: factor out parse_option_size
From: |
Gerd Hoffmann |
Subject: |
[Qemu-devel] [PATCH 5/8] qemu-option: factor out parse_option_size |
Date: |
Wed, 22 Jul 2009 12:25:04 +0200 |
Signed-off-by: Gerd Hoffmann <address@hidden>
---
qemu-option.c | 62 +++++++++++++++++++++++++++++++++-----------------------
qemu-option.h | 1 +
2 files changed, 37 insertions(+), 26 deletions(-)
diff --git a/qemu-option.c b/qemu-option.c
index 45f0c8f..390c97d 100644
--- a/qemu-option.c
+++ b/qemu-option.c
@@ -118,6 +118,40 @@ int parse_option_bool(const char *name, const char *value,
int *ret)
return 0;
}
+int parse_option_size(const char *name, const char *value, uint64_t *ret)
+{
+ char *postfix;
+ double sizef;
+
+ if (value != NULL) {
+ sizef = strtod(value, &postfix);
+ switch (*postfix) {
+ case 'T':
+ sizef *= 1024;
+ case 'G':
+ sizef *= 1024;
+ case 'M':
+ sizef *= 1024;
+ case 'K':
+ case 'k':
+ sizef *= 1024;
+ case 'b':
+ case '\0':
+ *ret = (uint64_t) sizef;
+ break;
+ default:
+ fprintf(stderr, "Option '%s' needs size as parameter\n", name);
+ fprintf(stderr, "You may use k, M, G or T suffixes for "
+ "kilobytes, megabytes, gigabytes and terabytes.\n");
+ return -1;
+ }
+ } else {
+ fprintf(stderr, "Option '%s' needs a parameter\n", name);
+ return -1;
+ }
+ return 0;
+}
+
/*
* Sets the value of a parameter in a given option list. The parsing of the
* value depends on the type of option:
@@ -165,34 +199,10 @@ int set_option_parameter(QEMUOptionParameter *list, const
char *name,
break;
case OPT_SIZE:
- if (value != NULL) {
- double sizef = strtod(value, (char**) &value);
-
- switch (*value) {
- case 'T':
- sizef *= 1024;
- case 'G':
- sizef *= 1024;
- case 'M':
- sizef *= 1024;
- case 'K':
- case 'k':
- sizef *= 1024;
- case 'b':
- case '\0':
- list->value.n = (uint64_t) sizef;
- break;
- default:
- fprintf(stderr, "Option '%s' needs size as parameter\n", name);
- fprintf(stderr, "You may use k, M, G or T suffixes for "
- "kilobytes, megabytes, gigabytes and terabytes.\n");
- return -1;
- }
- } else {
- fprintf(stderr, "Option '%s' needs a parameter\n", name);
+ if (-1 == parse_option_size(name, value, &list->value.n))
return -1;
- }
break;
+
default:
fprintf(stderr, "Bug: Option '%s' has an unknown type\n", name);
return -1;
diff --git a/qemu-option.h b/qemu-option.h
index cb8b1c3..9525e87 100644
--- a/qemu-option.h
+++ b/qemu-option.h
@@ -48,6 +48,7 @@ const char *get_opt_name(char *buf, int buf_size, const char
*p, char delim);
const char *get_opt_value(char *buf, int buf_size, const char *p);
int parse_option_bool(const char *name, const char *value, int *ret);
+int parse_option_size(const char *name, const char *value, uint64_t *ret);
/*
* The following functions take a parameter list as input. This is a pointer to
--
1.6.2.5
- [Qemu-devel] [PATCH 0/8] drive cleanups., Gerd Hoffmann, 2009/07/22
- [Qemu-devel] [PATCH 4/8] qemu-option: factor out parse_option_bool, Gerd Hoffmann, 2009/07/22
- [Qemu-devel] [PATCH 6/8] qemu-option: add parse_option_number, Gerd Hoffmann, 2009/07/22
- [Qemu-devel] [PATCH 2/8] add support for drive ids., Gerd Hoffmann, 2009/07/22
- [Qemu-devel] [PATCH 3/8] kill drives_opt, Gerd Hoffmann, 2009/07/22
- [Qemu-devel] [PATCH 5/8] qemu-option: factor out parse_option_size,
Gerd Hoffmann <=
- [Qemu-devel] [PATCH 7/8] QemuOpts: framework for storing and parsing options., Gerd Hoffmann, 2009/07/22
- [Qemu-devel] [PATCH 8/8] switch -drive to QemuOpts., Gerd Hoffmann, 2009/07/22
- [Qemu-devel] [PATCH 1/8] kill drives_table, Gerd Hoffmann, 2009/07/22