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#include "commtst.h"
#include <stdint.h>
i32_t
fsize (FILE *strm)
{
fseek (strm, 0, SEEK_SET);
fseek (strm, 0, SEEK_END);
long sz = ftell (strm);
assert (sz > 0);
fseek (strm, 0, SEEK_SET);
return sz;
}
void
read_atmost (void *src, char *rbuf, const size_t nmost, size_t *nread)
{
#ifdef is_win
HANDLE *hdlp = (HANDLE *) src;
#else
int *fdp = (int *) src;
#endif
size_t nread_accm = 0;
size_t nleft = nmost;
while (nleft > 0)
{
ssize_t nbuffered = nmost - nleft;
#ifdef is_win
ssize_t nread_cur = 0;
assT (ReadFile
(*hdlp, rbuf + nbuffered, (DWORD)nleft, (LPDWORD) (&nread_cur),
nullptr));
#else
ssize_t nread_cur = read (*fdp, rbuf + nbuffered, nleft);
#endif
if (nread_cur <= 0)
break;
nread_accm += nread_cur;
nleft -= nread_cur;
}
*nread = nread_accm;
}
void
recv_atmost (
#if is_unix
int csock,
#elif is_win
SOCKET csock,
#endif
char *rbuf, const size_t nmost, size_t *nread)
{
size_t nread_accm = 0;
size_t nleft = nmost;
while (nleft > 0)
{
ssize_t nbuffered = nmost - nleft;
ssize_t nread_cur = recv (csock, rbuf + nbuffered, (int)nleft, 0);
if (nread_cur <= 0)
break;
nread_accm += nread_cur;
nleft -= nread_cur;
}
*nread = nread_accm;
}
i32_t
read_u8str (const char8_t *const filename, char8_t *const destbuf)
{
FILE *file;
#if is_win
fopen_s (&file, (const char*) filename, "rb,ccs=UTF-8");
#else
file = fopen ((const char*) filename, "rb");
#endif
assert (file != nullptr);
i32_t fsz = fsize (file);
size_t bytes_read = fread (destbuf, 1, fsz, file);
assert (bytes_read > 0);
// null-terminate the buffer
destbuf[bytes_read] = 0;
// printf("File content: %s\n", destbuf);
fclose (file);
return 0;
}
i32_t
read_u8str_sz (const char8_t *const filename, char8_t *const destbuf,
size_t *nread)
{
FILE *file;
#if is_win
fopen_s (&file, (const char*) filename, "rb,ccs=UTF-8");
#else
file = fopen ((const char*) filename, "rb");
#endif
assTcb (file != nullptr,
{
fprintf (stderr, "filename:%s\n", filename);
});
i32_t fsz = fsize (file);
size_t bytes_read = fread (destbuf, 1, fsz, file);
assert (bytes_read > 0);
// null-terminate the buffer
destbuf[bytes_read] = 0;
*nread = bytes_read;
// printf("File content: %s\n", destbuf);
fclose (file);
return 0;
}
void
zero_trailing_white_char (char8_t *buf, const size_t len)
{
for (size_t i = len - 1; i != 0; i--) // TODO ckd_add
{
if (buf[i] == '\n' || buf[i] == '\r' || buf[i] == '\t' || buf[i] == ' ')
buf[i] = 0;
else
break;
}
}
void
zero_trailing_white_char2 (char8_t *buf, size_t *len)
{
for (size_t i = *len - 1; i != 0; i--) // TODO ckd_add
{
if (buf[i] == '\n' || buf[i] == '\r' || buf[i] == '\t' || buf[i] == ' ')
{
buf[i] = 0;
*len -= 1;
}
else
break;
}
}
#ifdef is_unix
FILE *
unix_fd2strm_r (int fd)
{
return fdopen (fd, "r");
}
#endif
#ifdef is_win
FILE *
win_handle2strm (HANDLE h)
{
int fd = _open_osfhandle ((intptr_t) h, _O_RDONLY);
assT (fd > 0);
FILE *file = _fdopen (fd, "r+");
assT (file != nullptr);
return file;
}
#endif
#ifdef is_win
int
win_handle2fd (HANDLE h)
{
int fd = _open_osfhandle ((intptr_t) h, _O_RDONLY);
assT (fd > 0);
return fd;
}
#endif
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