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qemu-io: Make cvtnum() a wrapper around strtosz_suffix()

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No reason to implement the same thing multiple times. A nice side effect
is that fractional numbers like 0.5M can be used in qemu-io now.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Kevin Wolf 2013-06-05 14:19:28 +02:00 committed by Stefan Hajnoczi
parent 5e00984aef
commit b6e356aa25
3 changed files with 6 additions and 38 deletions
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37
cmd.c
View File

@ -344,43 +344,6 @@ doneline(
#define MEGABYTES(x) ((long long)(x) << 20)
#define KILOBYTES(x) ((long long)(x) << 10)
long long
cvtnum(
char *s)
{
long long i;
char *sp;
int c;
i = strtoll(s, &sp, 0);
if (i == 0 && sp == s)
return -1LL;
if (*sp == '\0')
return i;
if (sp[1] != '\0')
return -1LL;
c = qemu_tolower(*sp);
switch (c) {
default:
return i;
case 'k':
return KILOBYTES(i);
case 'm':
return MEGABYTES(i);
case 'g':
return GIGABYTES(i);
case 't':
return TERABYTES(i);
case 'p':
return PETABYTES(i);
case 'e':
return EXABYTES(i);
}
return -1LL;
}
#define TO_EXABYTES(x) ((x) / EXABYTES(1))
#define TO_PETABYTES(x) ((x) / PETABYTES(1))
#define TO_TERABYTES(x) ((x) / TERABYTES(1))

1
cmd.h
View File

@ -58,7 +58,6 @@ char **breakline(char *input, int *count);
void doneline(char *input, char **vec);
char *fetchline(void);
long long cvtnum(char *s);
void cvtstr(double value, char *str, size_t sz);
struct timeval tsub(struct timeval t1, struct timeval t2);

6
qemu-io.c
View File

@ -29,6 +29,12 @@ static BlockDriverState *bs;
static int misalign;
static int64_t cvtnum(const char *s)
{
char *end;
return strtosz_suffix(s, &end, STRTOSZ_DEFSUFFIX_B);
}
/*
* Parse the pattern argument to various sub-commands.
*