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https://gitea.osmocom.org/sim-card/simtrace2.git
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8e7fca3255
We now generalize the USB communiction and abandon the 'req_ctx' structure inherited from openpcd. Instead we use the libosmocore 'msgb' structure to handle incoming and outgoing USB tranfers. We also use linuxlist-based msgb-queues for each endpoint.
70 lines
1.4 KiB
C
70 lines
1.4 KiB
C
#include <stdint.h>
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#include "talloc.h"
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#include "trace.h"
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#include "osmocom/core/utils.h"
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#define NUM_RCTX_SMALL 10
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#define RCTX_SIZE_SMALL 348
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static uint8_t msgb_data[NUM_RCTX_SMALL][RCTX_SIZE_SMALL] __attribute__((aligned(sizeof(long))));
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static uint8_t msgb_inuse[NUM_RCTX_SMALL];
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void *_talloc_zero(const void *ctx, size_t size, const char *name)
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{
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unsigned int i;
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if (size > RCTX_SIZE_SMALL) {
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TRACE_ERROR("%s() request too large(%d > %d)\r\n", __func__, size, RCTX_SIZE_SMALL);
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return NULL;
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}
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for (i = 0; i < ARRAY_SIZE(msgb_inuse); i++) {
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if (!msgb_inuse[i]) {
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uint8_t *out = msgb_data[i];
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msgb_inuse[i] = 1;
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memset(out, 0, size);
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return out;
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}
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}
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TRACE_ERROR("%s() out of memory!\r\n", __func__);
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return NULL;
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}
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int _talloc_free(void *ptr, const char *location)
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{
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unsigned int i;
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for (i = 0; i < ARRAY_SIZE(msgb_inuse); i++) {
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if (ptr == msgb_data[i]) {
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if (!msgb_inuse[i]) {
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TRACE_ERROR("%s: double_free by \r\n", __func__, location);
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} else {
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msgb_inuse[i] = 0;
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}
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return 0;
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}
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}
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TRACE_ERROR("%s: invalid pointer %p from %s\r\n", __func__, ptr, location);
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return -1;
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}
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void talloc_set_name_const(const void *ptr, const char *name)
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{
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/* do nothing */
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}
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#if 0
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void *talloc_named_const(const void *context, size_t size, const char *name)
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{
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if (size)
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TRACE_ERROR("%s: called with size!=0 from %s\r\n", __func__, name);
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return NULL;
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}
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void *talloc_pool(const void *context, size_t size)
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{
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}
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#endif
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