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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <android/log.h>
#include <cutils/properties.h>
#include <hardware/hardware.h>
#define LOG_BUF_SIZE 1024
static int default_log_fn(int prio, const char* tag, const char* msg);
static hwcplus_log_fn_t hwcplus_log_fn = default_log_fn;
void hwcplus_set_log_fn(hwcplus_log_fn_t fn) {
hwcplus_log_fn = fn;
}
#ifndef HAVE_STRLCPY
size_t strlcpy(char* dst, const char* src, size_t siz) {
char* d = dst;
const char* s = src;
size_t n = siz;
/* Copy as many bytes as will fit */
if (n != 0) {
while (--n != 0) {
if ((*d++ = *s++) == '\0')
break;
}
}
/* Not enough room in dst, add NUL and traverse rest of src */
if (n == 0) {
if (siz != 0)
*d = '\0'; /* NUL-terminate dst */
while (*s++) {
}
}
return(s - src - 1); /* count does not include NUL */
}
#endif
static int default_log_fn(int prio, const char* tag, const char* msg) {
fprintf(stderr, "<%d> %s %s\n", prio, tag, msg);
}
int __android_log_write(int prio, const char* tag, const char* msg) {
hwcplus_log_fn(prio, tag, msg);
}
int __android_log_print(int prio, const char* tag, const char* fmt, ...) {
va_list ap;
char buf[LOG_BUF_SIZE];
va_start(ap, fmt);
vsnprintf(buf, LOG_BUF_SIZE, fmt, ap);
va_end(ap);
return __android_log_write(prio, tag, buf);
}
void __android_log_assert(const char* cond,
const char* tag,
const char* fmt,
...) {
char buf[LOG_BUF_SIZE];
if (fmt) {
va_list ap;
va_start(ap, fmt);
vsnprintf(buf, LOG_BUF_SIZE, fmt, ap);
va_end(ap);
} else {
/* Msg not provided, log condition. N.B. Do not use cond directly as
* format string as it could contain spurious '%' syntax (e.g.
* "%d" in "blocks%devs == 0").
*/
if (cond)
snprintf(buf, LOG_BUF_SIZE, "Assertion failed: %s", cond);
else
snprintf(buf, LOG_BUF_SIZE, "Unspecified assertion failed");
}
__android_log_write(ANDROID_LOG_FATAL, tag, buf);
__builtin_trap(); /* trap so we have a chance to debug the situation */
}
int property_get(const char* key, char* value, const char* default_value) {
printf("property_get %s\n", key);
const char* r = default_value;
if (!r)
r = "";
strncpy(value, r, PROPERTY_VALUE_MAX);
return strlen(r);
}
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