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/*
* Copyright (C) 2019 Intel Corporation. All rights reserved.
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
*/
#include "platform_api_vmcore.h"
#include "platform_api_extension.h"
int
bh_platform_init()
{
return 0;
}
void
bh_platform_destroy()
{}
int
os_printf(const char *format, ...)
{
int ret = 0;
va_list ap;
va_start(ap, format);
ret += vprintf(format, ap);
va_end(ap);
return ret;
}
int
os_vprintf(const char *format, va_list ap)
{
return vprintf(format, ap);
}
uint64
os_time_get_boot_microsecond(void)
{
return (uint64)esp_timer_get_time();
}
uint8 *
os_thread_get_stack_boundary(void)
{
#if defined(CONFIG_FREERTOS_USE_TRACE_FACILITY)
TaskStatus_t pxTaskStatus;
vTaskGetInfo(xTaskGetCurrentTaskHandle(), &pxTaskStatus, pdTRUE, eInvalid);
return pxTaskStatus.pxStackBase;
#else // !defined(CONFIG_FREERTOS_USE_TRACE_FACILITY)
return NULL;
#endif
}
int
os_usleep(uint32 usec)
{
return usleep(usec);
}
/* Below parts of readv & writev are ported from Nuttx, under Apache License
* v2.0 */
ssize_t
readv(int fildes, const struct iovec *iov, int iovcnt)
{
ssize_t ntotal;
ssize_t nread;
size_t remaining;
uint8_t *buffer;
int i;
/* Process each entry in the struct iovec array */
for (i = 0, ntotal = 0; i < iovcnt; i++) {
/* Ignore zero-length reads */
if (iov[i].iov_len > 0) {
buffer = iov[i].iov_base;
remaining = iov[i].iov_len;
/* Read repeatedly as necessary to fill buffer */
do {
/* NOTE: read() is a cancellation point */
nread = read(fildes, buffer, remaining);
/* Check for a read error */
if (nread < 0) {
return nread;
}
/* Check for an end-of-file condition */
else if (nread == 0) {
return ntotal;
}
/* Update pointers and counts in order to handle partial
* buffer reads.
*/
buffer += nread;
remaining -= nread;
ntotal += nread;
} while (remaining > 0);
}
}
return ntotal;
}
ssize_t
writev(int fildes, const struct iovec *iov, int iovcnt)
{
ssize_t ntotal;
ssize_t nwritten;
size_t remaining;
uint8_t *buffer;
int i;
/* Process each entry in the struct iovec array */
for (i = 0, ntotal = 0; i < iovcnt; i++) {
/* Ignore zero-length writes */
if (iov[i].iov_len > 0) {
buffer = iov[i].iov_base;
remaining = iov[i].iov_len;
/* Write repeatedly as necessary to write the entire buffer */
do {
/* NOTE: write() is a cancellation point */
nwritten = write(fildes, buffer, remaining);
/* Check for a write error */
if (nwritten < 0) {
return ntotal ? ntotal : -1;
}
/* Update pointers and counts in order to handle partial
* buffer writes.
*/
buffer += nwritten;
remaining -= nwritten;
ntotal += nwritten;
} while (remaining > 0);
}
}
return ntotal;
}
int
openat(int fd, const char *path, int oflags, ...)
{
errno = ENOSYS;
return -1;
}
int
fstatat(int fd, const char *path, struct stat *buf, int flag)
{
errno = ENOSYS;
return -1;
}
int
mkdirat(int fd, const char *path, mode_t mode)
{
errno = ENOSYS;
return -1;
}
ssize_t
readlinkat(int fd, const char *path, char *buf, size_t bufsize)
{
errno = EINVAL;
return -1;
}
int
linkat(int fd1, const char *path1, int fd2, const char *path2, int flag)
{
errno = ENOSYS;
return -1;
}
int
renameat(int fromfd, const char *from, int tofd, const char *to)
{
errno = ENOSYS;
return -1;
}
int
symlinkat(const char *target, int fd, const char *path)
{
errno = ENOSYS;
return -1;
}
int
unlinkat(int fd, const char *path, int flag)
{
errno = ENOSYS;
return -1;
}
int
utimensat(int fd, const char *path, const struct timespec *ts, int flag)
{
errno = ENOSYS;
return -1;
}
DIR *
fdopendir(int fd)
{
errno = ENOSYS;
return NULL;
}
#if ESP_IDF_VERSION < ESP_IDF_VERSION_VAL(4, 4, 2)
int
ftruncate(int fd, off_t length)
{
errno = ENOSYS;
return -1;
}
#endif
int
futimens(int fd, const struct timespec *times)
{
errno = ENOSYS;
return -1;
}
int
nanosleep(const struct timespec *req, struct timespec *rem)
{
errno = ENOSYS;
return -1;
}
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