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authorUlrich Drepper <drepper@redhat.com>2001-09-01 19:03:22 +0000
committerUlrich Drepper <drepper@redhat.com>2001-09-01 19:03:22 +0000
commit9a1f71a7238deea567c3e3bd95c8ec5fd973f54d (patch)
treed9b638f4c738e4b44d813e2ceae07875d7b27d84 /iconv
parent45e0579fb7f8008c3df3358ca63bf9189e236edb (diff)
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Update.
2001-09-01 Ulrich Drepper <drepper@redhat.com> * iconv/gconv_cache.c: Rename variable cache to __gconv_cache and export it. * iconv/Versions (libc) [GLIBC_2.2.5]: Export __gconv_cache. * iconv/iconv_prog.c (insert_cache): New function. (print_known_names): If cache is used call insert_cache to use the information from the cache [PR libc/2509].
Diffstat (limited to 'iconv')
-rw-r--r--iconv/Versions4
-rw-r--r--iconv/gconv_cache.c49
-rw-r--r--iconv/iconv_prog.c48
3 files changed, 72 insertions, 29 deletions
diff --git a/iconv/Versions b/iconv/Versions
index 577a548..8d6b70c 100644
--- a/iconv/Versions
+++ b/iconv/Versions
@@ -6,4 +6,8 @@ libc {
# i*
iconv_open; iconv; iconv_close;
}
+ GLIBC_2.2.5 {
+ # variable shared with iconv program
+ __gconv_cache;
+ }
}
diff --git a/iconv/gconv_cache.c b/iconv/gconv_cache.c
index b4fd8d9..a2beee0 100644
--- a/iconv/gconv_cache.c
+++ b/iconv/gconv_cache.c
@@ -31,7 +31,7 @@
#include "../intl/hash-string.h"
-static void *cache;
+void *__gconv_cache;
static size_t cache_size;
static int cache_malloced;
@@ -70,25 +70,25 @@ __gconv_load_cache (void)
/* Make the file content available. */
cache_size = st.st_size;
#ifdef _POSIX_MAPPED_FILES
- cache = __mmap (NULL, cache_size, PROT_READ, MAP_SHARED, fd, 0);
- if (__builtin_expect (cache == MAP_FAILED, 0))
+ __gconv_cache = __mmap (NULL, cache_size, PROT_READ, MAP_SHARED, fd, 0);
+ if (__builtin_expect (__gconv_cache == MAP_FAILED, 0))
#endif
{
size_t already_read;
- cache = malloc (cache_size);
- if (cache == NULL)
+ __gconv_cache = malloc (cache_size);
+ if (__gconv_cache == NULL)
goto close_and_exit;
already_read = 0;
do
{
- ssize_t n = __read (fd, (char *) cache + already_read,
+ ssize_t n = __read (fd, (char *) __gconv_cache + already_read,
cache_size - already_read);
if (__builtin_expect (n, 0) == -1)
{
- free (cache);
- cache = NULL;
+ free (__gconv_cache);
+ __gconv_cache = NULL;
goto close_and_exit;
}
@@ -103,7 +103,7 @@ __gconv_load_cache (void)
__close (fd);
/* Check the consistency. */
- header = (struct gconvcache_header *) cache;
+ header = (struct gconvcache_header *) __gconv_cache;
if (__builtin_expect (header->magic, GCONVCACHE_MAGIC) != GCONVCACHE_MAGIC
|| __builtin_expect (header->string_offset >= cache_size, 0)
|| __builtin_expect (header->hash_offset >= cache_size, 0)
@@ -116,14 +116,14 @@ __gconv_load_cache (void)
{
if (cache_malloced)
{
- free (cache);
+ free (__gconv_cache);
cache_malloced = 0;
}
#ifdef _POSIX_MAPPED_FILES
else
- __munmap (cache, cache_size);
+ __munmap (__gconv_cache, cache_size);
#endif
- cache = NULL;
+ __gconv_cache = NULL;
return -1;
}
@@ -145,9 +145,10 @@ find_module_idx (const char *str, size_t *idxp)
const struct hash_entry *hashtab;
unsigned int limit;
- header = (const struct gconvcache_header *) cache;
- strtab = (char *) cache + header->string_offset;
- hashtab = (struct hash_entry *) ((char *) cache + header->hash_offset);
+ header = (const struct gconvcache_header *) __gconv_cache;
+ strtab = (char *) __gconv_cache + header->string_offset;
+ hashtab = (struct hash_entry *) ((char *) __gconv_cache
+ + header->hash_offset);
hval = hash_string (str);
idx = hval % header->hash_size;
@@ -210,7 +211,7 @@ __gconv_compare_alias_cache (const char *name1, const char *name2, int *result)
size_t name1_idx;
size_t name2_idx;
- if (cache == NULL)
+ if (__gconv_cache == NULL)
return -1;
if (find_module_idx (name1, &name1_idx) != 0
@@ -237,13 +238,13 @@ __gconv_lookup_cache (const char *toset, const char *fromset,
const struct module_entry *to_module;
struct __gconv_step *result;
- if (cache == NULL)
+ if (__gconv_cache == NULL)
/* We have no cache available. */
return __GCONV_NODB;
- header = (const struct gconvcache_header *) cache;
- strtab = (char *) cache + header->string_offset;
- modtab = (const struct module_entry *) ((char *) cache
+ header = (const struct gconvcache_header *) __gconv_cache;
+ strtab = (char *) __gconv_cache + header->string_offset;
+ modtab = (const struct module_entry *) ((char *) __gconv_cache
+ header->module_offset);
if (find_module_idx (fromset, &fromidx) != 0
@@ -272,7 +273,7 @@ __gconv_lookup_cache (const char *toset, const char *fromset,
/* Note the -1. This is due to the offset added in iconvconfig.
See there for more explanations. */
- extra = (const struct extra_entry *) ((char *) cache
+ extra = (const struct extra_entry *) ((char *) __gconv_cache
+ header->otherconv_offset
+ from_module->extra_offset - 1);
while (extra->module_cnt != 0
@@ -429,7 +430,7 @@ void
internal_function
__gconv_release_cache (struct __gconv_step *steps, size_t nsteps)
{
- if (cache != NULL)
+ if (__gconv_cache != NULL)
/* The only thing we have to deallocate is the record with the
steps. */
free (steps);
@@ -441,10 +442,10 @@ static void __attribute__ ((unused))
free_mem (void)
{
if (cache_malloced)
- free (cache);
+ free (__gconv_cache);
#ifdef _POSIX_MAPPED_FILES
else
- __munmap (cache, cache_size);
+ __munmap (__gconv_cache, cache_size);
#endif
}
diff --git a/iconv/iconv_prog.c b/iconv/iconv_prog.c
index 00b4b95..e71f8d7 100644
--- a/iconv/iconv_prog.c
+++ b/iconv/iconv_prog.c
@@ -39,6 +39,7 @@
#include <charmap.h>
#include <gconv_int.h>
#include "iconv_prog.h"
+#include "iconvconfig.h"
/* Get libc version number. */
#include "../version.h"
@@ -46,6 +47,9 @@
#define PACKAGE _libc_intl_domainname
+/* Defined in gconv_cache.c. */
+extern void *__gconv_cache;
+
/* Name and version of program. */
static void print_version (FILE *stream, struct argp_state *state);
void (*argp_program_version_hook) (FILE *, struct argp_state *) = print_version;
@@ -653,7 +657,7 @@ add_known_names (struct gconv_module *node)
if (strcmp (node->from_string, "INTERNAL"))
tsearch (node->from_string, &printlist,
(__compar_fn_t) strverscmp);
- if (strcmp (node->to_string, "INTERNAL"))
+ if (strcmp (node->to_string, "INTERNAL") != 0)
tsearch (node->to_string, &printlist, (__compar_fn_t) strverscmp);
node = node->same;
@@ -661,6 +665,31 @@ add_known_names (struct gconv_module *node)
while (node != NULL);
}
+
+static void
+insert_cache (void)
+{
+ const struct gconvcache_header *header;
+ const char *strtab;
+ const struct hash_entry *hashtab;
+ size_t cnt;
+
+ header = (const struct gconvcache_header *) __gconv_cache;
+ strtab = (char *) __gconv_cache + header->string_offset;
+ hashtab = (struct hash_entry *) ((char *) __gconv_cache
+ + header->hash_offset);
+
+ for (cnt = 0; cnt < header->hash_size; ++cnt)
+ if (hashtab[cnt].string_offset != 0)
+ {
+ const char *str = strtab + hashtab[cnt].string_offset;
+
+ if (strcmp (str, "INTERNAL") != 0)
+ tsearch (str, &printlist, (__compar_fn_t) strverscmp);
+ }
+}
+
+
static void
internal_function
print_known_names (void)
@@ -671,11 +700,20 @@ print_known_names (void)
h = iconv_open ("L1", "L1");
iconv_close (h);
- /* First add the aliases. */
- twalk (__gconv_alias_db, insert_print_list);
+ /* See whether we have a cache. */
+ if (__gconv_cache != NULL)
+ /* Yep, use only this information. */
+ insert_cache ();
+ else
+ {
+ /* No, then use the information read from the gconv-modules file.
+ First add the aliases. */
+ twalk (__gconv_alias_db, insert_print_list);
- /* Add the from- and to-names from the known modules. */
- add_known_names (__gconv_modules_db);
+ /* Add the from- and to-names from the known modules. */
+ if (__gconv_modules_db != NULL)
+ add_known_names (__gconv_modules_db);
+ }
fputs (_("\
The following list contain all the coded character sets known. This does\n\