mirror of
https://github.com/alsa-project/alsa-lib.git
synced 2025-12-21 08:56:52 -05:00
64-bit fixes.
Controls API uses binary tree functions (tsearch ...).
This commit is contained in:
Jaroslav Kysela
parent
e22a79b707
commit
f981892e3a
13 changed files with 174 additions and 164 deletions
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@ -24,8 +24,8 @@ struct snd_ctl {
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int fd;
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int ccount;
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int cerr;
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snd_hcontrol_t *cfirst;
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snd_hcontrol_t *clast;
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void *croot; /* root of controls */
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void *croot_new; /* new croot */
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snd_ctl_csort_t *csort;
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snd_ctl_ccallback_rebuild_t *callback_rebuild;
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void *callback_rebuild_private_data;
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@ -27,21 +27,26 @@
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#include <fcntl.h>
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#include <sys/ioctl.h>
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#include <assert.h>
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#define __USE_GNU
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#include <search.h>
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#include "asoundlib.h"
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#include "control_local.h"
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static void snd_ctl_link_after(snd_ctl_t *handle, snd_hcontrol_t *point, snd_hcontrol_t *hcontrol);
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static void snd_ctl_cfree1(snd_hcontrol_t *hcontrol);
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int snd_ctl_cbuild(snd_ctl_t *handle, snd_ctl_csort_t *csort)
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{
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snd_control_list_t list;
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snd_hcontrol_t *hcontrol, *prev;
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int err, idx;
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int err;
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unsigned int idx;
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printf("cbuild - start\n");
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assert(handle != NULL);
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if ((err = snd_ctl_cfree(handle)) < 0)
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return err;
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__rebuild:
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if (csort == NULL)
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csort = snd_ctl_csort;
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memset(&list, 0, sizeof(list));
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do {
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if (list.pids != NULL)
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@ -68,93 +73,49 @@ int snd_ctl_cbuild(snd_ctl_t *handle, snd_ctl_csort_t *csort)
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return -ENOMEM;
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}
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hcontrol->id = list.pids[idx];
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if (prev == NULL) {
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handle->cfirst = handle->clast = hcontrol;
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handle->ccount = 1;
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} else {
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snd_ctl_link_after(handle, prev, hcontrol);
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hcontrol->handle = handle;
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if (tsearch(hcontrol, &handle->croot, (__compar_fn_t)csort) == NULL) {
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tdestroy(&handle->croot, (__free_fn_t)snd_ctl_cfree1);
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handle->croot = NULL;
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}
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prev = hcontrol;
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handle->ccount++;
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}
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if (list.pids != NULL)
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free(list.pids);
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if (csort != NULL && (err = snd_ctl_cresort(handle, csort)) < 0)
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return err;
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handle->csort = csort;
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return 0;
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}
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snd_hcontrol_t *snd_ctl_cfirst(snd_ctl_t *handle)
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static void snd_ctl_cfree1(snd_hcontrol_t *hcontrol)
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{
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snd_ctl_t *handle;
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assert(hcontrol != NULL);
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handle = hcontrol->handle;
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assert(handle != NULL);
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return handle->cfirst;
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}
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snd_hcontrol_t *snd_ctl_clast(snd_ctl_t *handle)
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{
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assert(handle != NULL);
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return handle->clast;
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}
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static void snd_ctl_unlink(snd_ctl_t *handle, snd_hcontrol_t *hcontrol)
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{
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if (handle->cfirst == hcontrol)
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handle->cfirst = hcontrol->next;
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if (handle->clast == hcontrol)
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handle->clast = hcontrol->prev;
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if (hcontrol->prev != NULL)
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hcontrol->prev->next = hcontrol->next;
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if (hcontrol->next != NULL)
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hcontrol->next->prev = hcontrol->prev;
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hcontrol->prev = hcontrol->next = NULL;
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handle->ccount--;
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}
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static void snd_ctl_link_before(snd_ctl_t *handle, snd_hcontrol_t *point, snd_hcontrol_t *hcontrol)
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{
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if (point == handle->cfirst)
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handle->cfirst = hcontrol;
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hcontrol->next = point;
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hcontrol->prev = point->prev;
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if (point->prev != NULL)
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point->prev->next = hcontrol;
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point->prev = hcontrol;
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handle->ccount++;
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}
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static void snd_ctl_link_after(snd_ctl_t *handle, snd_hcontrol_t *point, snd_hcontrol_t *hcontrol)
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{
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if (point == handle->clast)
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handle->clast = hcontrol;
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hcontrol->prev = point;
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hcontrol->next = point->next;
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if (point->next != NULL)
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point->next->prev = hcontrol;
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point->next = hcontrol;
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handle->ccount++;
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}
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static void snd_ctl_cfree1(snd_ctl_t *handle, snd_hcontrol_t *hcontrol)
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{
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snd_ctl_unlink(handle, hcontrol);
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assert(handle->ccount > 0);
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if (hcontrol->event_remove)
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hcontrol->event_remove(handle, hcontrol);
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if (hcontrol->private_free)
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hcontrol->private_free(hcontrol->private_data);
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free(hcontrol);
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handle->ccount--;
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}
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int snd_ctl_cfree(snd_ctl_t *handle)
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{
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handle->csort = NULL;
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while (handle->cfirst)
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snd_ctl_cfree1(handle, handle->cfirst);
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handle->cerr = 0;
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if (handle->croot != NULL) {
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tdestroy(handle->croot, (__free_fn_t)snd_ctl_cfree1);
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handle->croot = NULL;
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}
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assert(handle->ccount == 0);
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return 0;
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}
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int snd_ctl_csort(const snd_hcontrol_t **_c1, const snd_hcontrol_t **_c2)
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int snd_ctl_csort(const snd_hcontrol_t *c1, const snd_hcontrol_t *c2)
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{
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const snd_hcontrol_t *c1 = *_c1;
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const snd_hcontrol_t *c2 = *_c2;
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int res;
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res = strcmp(c1->id.name, c2->id.name);
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@ -165,54 +126,70 @@ int snd_ctl_csort(const snd_hcontrol_t **_c1, const snd_hcontrol_t **_c2)
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return 1;
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return 0;
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}
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return res;
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}
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static void snd_ctl_cresort_action(snd_hcontrol_t *hcontrol, VISIT which, int level)
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{
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snd_ctl_t *handle;
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level = 0; /* to keep GCC happy */
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assert(hcontrol != NULL);
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handle = hcontrol->handle;
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assert(handle != NULL);
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if (handle->cerr < 0)
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return;
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switch (which) {
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case preorder: break;
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case postorder: break;
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case endorder:
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case leaf:
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if (tsearch(hcontrol, &handle->croot, (__compar_fn_t)handle->csort) == NULL)
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handle->cerr = -ENOMEM;
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break;
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}
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}
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static void snd_ctl_cresort_free(snd_hcontrol_t *hcontrol)
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{
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hcontrol = NULL; /* to keep GCC happy */
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/* nothing */
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}
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int snd_ctl_cresort(snd_ctl_t *handle, snd_ctl_csort_t *csort)
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{
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int idx, count;
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snd_hcontrol_t **pmap, *hcontrol;
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int result;
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snd_ctl_csort_t *csort_old;
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assert(handle != NULL && csort != NULL);
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if (handle->ccount == 0)
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return 0;
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pmap = (snd_hcontrol_t **)calloc(handle->ccount, sizeof(snd_hcontrol_t *));
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if (pmap == NULL)
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return -ENOMEM;
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for (hcontrol = handle->cfirst, idx = 0; hcontrol != NULL; hcontrol = hcontrol->next, idx++) {
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printf("idx = %i, hcontrol = 0x%x (0x%x), '%s'\n", idx, (int)hcontrol, (int)&pmap[idx], hcontrol->id.name);
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pmap[idx] = hcontrol;
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}
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assert(idx == handle->ccount);
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if (handle->cerr < 0)
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return handle->cerr;
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assert(handle->croot_new == NULL);
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csort_old = handle->csort;
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handle->csort = csort;
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qsort(pmap, count = handle->ccount, sizeof(snd_hcontrol_t *), (int (*)(const void *, const void *))csort);
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while (handle->cfirst)
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snd_ctl_unlink(handle, handle->cfirst);
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handle->cfirst = handle->clast = pmap[0]; handle->ccount = 1;
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for (idx = 1; idx < count; idx++)
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snd_ctl_link_after(handle, pmap[idx-1], pmap[idx]);
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free(pmap);
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twalk(handle->croot, (__action_fn_t)snd_ctl_cresort_action);
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if (handle->cerr < 0) {
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result = handle->cerr;
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handle->cerr = 0;
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handle->csort = csort_old;
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tdestroy(handle->croot_new, (__free_fn_t)snd_ctl_cresort_free);
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handle->croot_new = NULL;
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return result;
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}
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tdestroy(handle->croot, (__free_fn_t)snd_ctl_cresort_free);
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handle->croot = handle->croot_new;
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handle->croot_new = NULL;
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return 0;
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}
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snd_hcontrol_t *snd_ctl_cfind(snd_ctl_t *handle, snd_control_id_t *id)
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{
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snd_hcontrol_t *hcontrol;
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assert(handle != NULL);
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for (hcontrol = handle->cfirst; hcontrol != NULL; hcontrol = hcontrol->next) {
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if (hcontrol->id.iface != id->iface)
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continue;
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if (hcontrol->id.device != id->device)
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continue;
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if (hcontrol->id.subdevice != id->subdevice)
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continue;
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if (strncmp(hcontrol->id.name, id->name, sizeof(hcontrol->id.name)))
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continue;
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if (hcontrol->id.index != id->index)
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continue;
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return hcontrol;
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}
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return NULL;
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if (handle->croot == NULL)
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return NULL;
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return (snd_hcontrol_t *)tfind(id, &handle->croot, (__compar_fn_t)handle->csort);
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}
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int snd_ctl_ccallback_rebuild(snd_ctl_t *handle, snd_ctl_ccallback_rebuild_t *callback, void *private_data)
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@ -220,6 +197,7 @@ int snd_ctl_ccallback_rebuild(snd_ctl_t *handle, snd_ctl_ccallback_rebuild_t *ca
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assert(handle != NULL);
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handle->callback_rebuild = callback;
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handle->callback_rebuild_private_data = private_data;
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return 0;
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}
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int snd_ctl_ccallback_add(snd_ctl_t *handle, snd_ctl_ccallback_add_t *callback, void *private_data)
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@ -227,10 +205,12 @@ int snd_ctl_ccallback_add(snd_ctl_t *handle, snd_ctl_ccallback_add_t *callback,
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assert(handle != NULL);
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handle->callback_add = callback;
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handle->callback_add_private_data = private_data;
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return 0;
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}
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static void callback_rebuild(snd_ctl_t *handle, void *private_data)
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{
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private_data = NULL; /* to keep GCC happy */
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handle->cerr = snd_ctl_cbuild(handle, handle->csort);
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if (handle->cerr >= 0 && handle->callback_rebuild)
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handle->callback_rebuild(handle, handle->callback_rebuild_private_data);
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@ -240,6 +220,7 @@ static void callback_change(snd_ctl_t *handle, void *private_data, snd_control_i
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{
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snd_hcontrol_t *hcontrol;
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private_data = NULL; /* to keep GCC happy */
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if (handle->cerr < 0)
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return;
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hcontrol = snd_ctl_cfind(handle, id);
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@ -254,6 +235,7 @@ static void callback_value(snd_ctl_t *handle, void *private_data, snd_control_id
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{
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snd_hcontrol_t *hcontrol;
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private_data = NULL; /* to keep GCC happy */
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if (handle->cerr < 0)
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return;
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hcontrol = snd_ctl_cfind(handle, id);
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@ -268,6 +250,7 @@ static void callback_add(snd_ctl_t *handle, void *private_data, snd_control_id_t
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{
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snd_hcontrol_t *hcontrol, *icontrol;
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private_data = NULL; /* to keep GCC happy */
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if (handle->cerr < 0)
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return;
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hcontrol = (snd_hcontrol_t *)calloc(1, sizeof(snd_hcontrol_t));
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@ -276,17 +259,16 @@ static void callback_add(snd_ctl_t *handle, void *private_data, snd_control_id_t
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return;
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}
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hcontrol->id = *id;
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if (handle->csort != NULL) {
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for (icontrol = handle->cfirst; icontrol != NULL; icontrol = icontrol->next) {
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if (handle->csort((const snd_hcontrol_t **)&icontrol, (const snd_hcontrol_t **)&hcontrol) > 0) {
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snd_ctl_link_before(handle, icontrol, hcontrol);
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break;
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}
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}
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if (icontrol == NULL)
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snd_ctl_link_after(handle, handle->clast, hcontrol);
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} else {
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snd_ctl_link_after(handle, handle->clast, hcontrol);
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hcontrol->handle = handle;
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icontrol = tsearch(hcontrol, &handle->croot, (__compar_fn_t)handle->csort);
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if (icontrol == NULL) {
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free(hcontrol);
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handle->cerr = -ENOMEM;
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return;
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}
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if (icontrol != hcontrol) { /* double hit */
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free(hcontrol);
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return;
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}
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if (handle->callback_add)
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handle->callback_add(handle, handle->callback_add_private_data, hcontrol);
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@ -296,6 +278,7 @@ static void callback_remove(snd_ctl_t *handle, void *private_data, snd_control_i
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{
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snd_hcontrol_t *hcontrol;
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private_data = NULL; /* to keep GCC happy */
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if (handle->cerr < 0)
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return;
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hcontrol = snd_ctl_cfind(handle, id);
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@ -303,19 +286,42 @@ static void callback_remove(snd_ctl_t *handle, void *private_data, snd_control_i
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handle->cerr = -ENOENT;
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return;
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}
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snd_ctl_cfree1(handle, hcontrol);
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if (tdelete(hcontrol, &handle->croot, (__compar_fn_t)handle->csort) != NULL)
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snd_ctl_cfree1(hcontrol);
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}
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static void snd_ctl_cevent_walk1(snd_hcontrol_t *hcontrol, VISIT which, int level)
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{
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level = 0; /* to keep GCC happy */
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assert(hcontrol != NULL);
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switch (which) {
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case preorder: break;
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case postorder: break;
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case endorder:
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case leaf:
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if (hcontrol->change && hcontrol->event_change) {
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hcontrol->event_change(hcontrol->handle, hcontrol);
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hcontrol->change = 0;
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}
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if (hcontrol->value && hcontrol->event_value) {
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hcontrol->event_value(hcontrol->handle, hcontrol);
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hcontrol->value = 0;
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}
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break;
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}
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}
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int snd_ctl_cevent(snd_ctl_t *handle)
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{
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snd_ctl_callbacks_t callbacks = {
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static snd_ctl_callbacks_t callbacks = {
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rebuild: callback_rebuild,
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value: callback_value,
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change: callback_change,
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add: callback_add,
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remove: callback_remove
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remove: callback_remove,
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private_data: NULL,
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reserved: { NULL, }
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};
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snd_hcontrol_t *hcontrol;
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int res;
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assert(handle != NULL);
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@ -325,15 +331,6 @@ int snd_ctl_cevent(snd_ctl_t *handle)
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return res;
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if (handle->cerr < 0)
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return handle->cerr;
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for (hcontrol = handle->cfirst; hcontrol != NULL; hcontrol = hcontrol->next) {
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if (hcontrol->change && hcontrol->event_change) {
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hcontrol->event_change(handle, hcontrol);
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hcontrol->change = 0;
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}
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if (hcontrol->value && hcontrol->event_value) {
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hcontrol->event_value(handle, hcontrol);
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hcontrol->value = 0;
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}
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}
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twalk(handle->croot, (__action_fn_t)snd_ctl_cevent_walk1);
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return res;
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}
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@ -20,6 +20,7 @@
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include "asoundlib.h"
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