ardupilot/libraries/AP_HAL/utility/BetterStream.cpp

43 lines
799 B
C++
Raw Normal View History

#include "BetterStream.h"
#include "print_vprintf.h"
void AP_HAL::BetterStream::printf(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vprintf(fmt, ap);
va_end(ap);
}
void AP_HAL::BetterStream::vprintf(const char *fmt, va_list ap)
{
print_vprintf(this, fmt, ap);
}
size_t AP_HAL::BetterStream::write(const char *str)
{
return write((const uint8_t *)str, strlen(str));
}
int16_t AP_HAL::BetterStream::read()
{
uint8_t b;
if (!read(b)) {
return -1;
}
return b;
}
ssize_t AP_HAL::BetterStream::read(uint8_t *buffer, uint16_t count) {
uint16_t offset = 0;
while (count--) {
const int16_t x = read();
if (x == -1) {
return offset;
}
buffer[offset++] = (uint8_t)x;
}
return offset;
}