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(gen_steps): Set __counter initialy to 1.

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(increment_counter): New function.  Broken out of find_derivation.
(find_derivation): No need for a lock.  Increment counter only when
the derivation was already available.
This commit is contained in:
Ulrich Drepper 1999-12-08 04:34:17 +00:00
parent c8f1ce4ae8
commit 521c959a8c
1 changed files with 30 additions and 1 deletions
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31
iconv/gconv_db.c
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@ -222,7 +222,7 @@ gen_steps (struct derivation_step *best, const char *toset,
result[step_cnt].shlib_handle = shlib_handle;
result[step_cnt].modname = shlib_handle->name;
result[step_cnt].counter = 0;
result[step_cnt].counter = 1;
result[step_cnt].fct = shlib_handle->fct;
result[step_cnt].init_fct = shlib_handle->init_fct;
result[step_cnt].end_fct = shlib_handle->end_fct;
@ -281,6 +281,35 @@ gen_steps (struct derivation_step *best, const char *toset,
}
#ifndef STATIC_GCONV
static int
internal_function
increment_counter (struct __gconv_step *steps, size_t nsteps)
{
/* Increment the user counter. */
size_t cnt = nsteps;
int result = __GCONV_OK;
while (cnt-- > 0)
if (steps[cnt].__counter++ == 0)
{
steps[cnt].__shlib_handle =
__gconv_find_shlib (steps[cnt].__modname);
if (steps[cnt].__shlib_handle == NULL)
{
/* Oops, this is the second time we use this module (after
unloading) and this time loading failed!? */
while (++cnt < nsteps)
__gconv_release_shlib (steps[cnt].__shlib_handle);
result = __GCONV_NOCONV;
break;
}
}
return result;
}
#endif
/* The main function: find a possible derivation from the `fromset' (either
the given name or the alias) to the `toset' (again with alias). */
static int