/* ----------------------------------------------------------------------- *
*
* Copyright 2010-2011 Gene Cumm
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, Inc., 53 Temple Place Ste 330,
* Boston MA 02111-1307, USA; either version 2 of the License, or
* (at your option) any later version; incorporated herein by reference.
*
* ----------------------------------------------------------------------- */
/*
* cptime.c Version 1.4
*
* Timed copy; read entire file then output total time, bytes transferred,
* and compute transfer rate.
*
* cptime [-s|-l] [-v|-q] [-b _SIZE_] [-n _LEN_] _FILE_...
* -s Change to simple output mode without computing transfer rate
* -l Change to long output mode (to allow for overriding previous -s)
* -v Verbose output
* -q Quiet output
* -b _SIZE_ use _SIZE_ for transfer size
* -n _LEN_ maximum length to fetch
* _FILE_... Space delimited list of files to dump
* Note: The last instance of -s or -l wins, along with the last use of -b and -n and the winning option will be applied to all operations
*
* Hisory:
* 1.4 Use fread() rather than read(); use CLK_TCK when available.
* 1.3 Added -v/-q; rework some argument processing.
* 1.2 Added -n
* 1.1 Added -l and -b switches; more flexible command line processing
* 1.0 First release
*/
/*
* ToDos:
* - Refine timing to be more precise. Low priority.
* - Add -o for offset. Wishlist.
*/
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/times.h>
#include <consoles.h>
#include <minmax.h>
#include <limits.h>
#include <string.h>
#include <stdint.h>
#include <console.h>
#ifdef __COM32__
# define BUFSZ_DEF (size_t)2048
/* What's optimal? Under 4k?
* layout.inc: xfer_buf_seg equ 1000h
* com32.inc: push dword (1 << 16) ; 64K bounce buffer
*/
/* typedef size_t off_t */
# define TPS_T float
# ifdef CLK_TCK
static inline TPS_T get_tps(void) { return CLK_TCK; }
# else
static inline TPS_T get_tps(void) { return 18.2; }
# endif
#else /* __COM32__ */
# define BUFSZ_DEF (size_t)16384
/* Need to check what might be a "best" buffer/fetch block size here */
# define TPS_T long
static inline TPS_T get_tps(void) { return sysconf(_SC_CLK_TCK); }
#endif /* __COM32__ */
#ifndef SSIZE_MAX
# define SSIZE_MAX PTRDIFF_MAX
#endif
/* typedef ptrdiff_t ssize_t; */
#define BUFSZ_MAX (size_t)SSIZE_MAX
/* ssize_t max */
#define BUFSZ_MIN (size_t)1
/* Please note: I don't know the origin of these two macros nor their license */
#define TYPE_SIGNED(t) (! ((t) 0 < (t) -1))
#define TYPE_MAX(t) \
((t) (! TYPE_SIGNED (t) \
? (t) -1 \
: ~ (~ (t) 0 << (sizeof (t) * CHAR_BIT - 1))))
#ifndef OFF_T_MAX
# define OFF_T_MAX TYPE_MAX(off_t)
#endif
/* Can't be SIZE_MAX or SSIZE_MAX as Syslinux/COM32 is unsigned while Linux
* is signed.
*/
#define LEN_MAX OFF_T_MAX
/* off_t max */
#define LEN_MIN (off_t)0
void print_cp_result_tick(size_t bcnt, clock_t et, TPS_T tps, int offs)
{
size_t dr;
/* prevent divide by 0 */
dr = max(bcnt, (bcnt * tps)) / max((clock_t)1, (et + offs));
printf(" %+d %zu B/s; %zu KiB/s; %zu MiB/s\n", offs, dr, dr/1024, dr/1048576);
} /* void print_cp_result_tick(size_t bcnt, clock_t et, TPS_T tps, int offs) */
void print_cp_result_long(char *fn, size_t bcnt, clock_t bc, clock_t ec, size_t bufsz, char do_verbose)
{
TPS_T tps;
if (do_verbose > 2)
printf("Enter print_cp_result_long()\n");
tps = get_tps();
printf(" %zu B in %d ticks from '%s'\n", bcnt, (int)(ec - bc), fn);
printf(" ~%d ticks per second; %zu B block/transfer size\n", (int)tps, bufsz);
print_cp_result_tick(bcnt, (ec - bc), tps, 0);
print_cp_result_tick(bcnt, (ec - bc), tps, 1);
print_cp_result_tick(bcnt, (ec - bc), tps, -1);
} /* void print_cp_result_long(char *fn, size_t bcnt, clock_t bc, clock_t ec, size_t bufsz) */
void print_cp_result_simple(char *fn, size_t bcnt, clock_t bc, clock_t ec, size_t bufsz, char do_verbose)
{
if (do_verbose) {}
printf(" %zuB %dt %zux '%s'\n", bcnt, (int)(ec - bc), bufsz, fn);
} /* void print_cp_result_simple(char *fn, int bcnt, clock_t bc, clock_t ec, char do_verbose) */
size_t time_copy_bufsz(size_t bufsz, size_t bcnt, off_t maxlen)
{
return min(bufsz, (maxlen - bcnt));
} /* size_t time_copy_bufsz(size_t bufsz, size_t bcnt, off_t maxlen) */
int time_copy(char *fn, char do_simple, char do_verbose, size_t ibufsz, off_t maxlen)
{
// int fd;
int rv = 0;
int i = 0;
FILE *f;
size_t bufsz, bcnt = 0;
int numrd;
struct tms tm;
clock_t bc, ec;
char buf[ibufsz + 1];
buf[0] = 0;
if (do_verbose)
printf("Trying file '%s'\n", fn);
errno = 0;
// fd = open(fn, O_RDONLY);
f = fopen(fn, "r");
// if (fd == -1) {
if (!f) {
switch (errno) {
case ENOENT :
printf("File '%s' does not exist\n", fn);
break;
case EBADF:
printf("File '%s': Bad File Descriptor\n", fn);
break;
default :
printf("Error '%d' opening file '%s'\n", errno, fn);
}
rv = 1;
} else {
if (do_verbose)
printf("File '%s' opened\n", fn);
bufsz = time_copy_bufsz(ibufsz, bcnt, maxlen);
bc = times(&tm);
// numrd = read(fd, buf, bufsz);
// numrd = fread(buf, bufsz, 1, f);
numrd = fread(buf, 1, bufsz, f);
i++;
if (numrd > 0)
bcnt = numrd;
while ((numrd > 0) && (bufsz > 0)) {
bufsz = time_copy_bufsz(bufsz, bcnt, maxlen);
// numrd = read(fd, buf, bufsz);
// numrd = fread(buf, bufsz, 1, f);
numrd = fread(buf, 1, bufsz, f);
i++;
if (numrd >= 0)
// bcnt = bcnt + numrd;
bcnt += numrd;
}
ec = times(&tm);
// close(fd);
fclose(f);
if (do_verbose)
printf("File '%s' closed\n", fn);
if (numrd < 0) {
switch (errno) {
case EIO :
printf("IO Error at %zu B reading file '%s'\n", bcnt, fn);
break;
case EINVAL :
printf("Invalid Mode at %zu B reading file '%s'\n", bcnt, fn);
break;
default :
printf("Error '%d' at %zu B reading file '%s'\n", errno, bcnt, fn);
}
rv = 2;
}
if (bcnt > 0) {
if (bufsz == 0)
printf("maxed out on maxln\n");
if (do_simple)
print_cp_result_simple(fn, bcnt, bc, ec, ibufsz, do_verbose);
else
print_cp_result_long(fn, bcnt, bc, ec, ibufsz, do_verbose);
}
if (do_verbose)
printf(" numrd %d bcnt %d bufsz %d i %d\n", numrd, bcnt, bufsz, i);
}
return rv;
} /* int time_copy(char *fn, char do_simple, int bufsz, off_t maxlen) */
int main(int argc, char *argv[])
{
int i;
char do_simple = 0, do_pbuf = 0, do_plen = 0, do_verbose = 0;
char *arg;
size_t tbufsz, bufsz = min((BUFSZ_DEF), (BUFSZ_MAX));
off_t tmaxlen, maxlen = LEN_MAX;
int numfl = 0;
console_ansi_std();
// openconsole(&dev_stdcon_r, &dev_stdcon_w);
for (i = 1; i < argc; i++) {
if (argv[i][0] == '-') {
arg = argv[i] + 1;
if (strcmp(arg, "b") == 0) {
i++;
if (i < argc) {
tbufsz = atoi(argv[i]);
if (tbufsz > 0)
bufsz = min(max((BUFSZ_MIN), tbufsz), (BUFSZ_MAX));
do_pbuf = 1;
}
} else if (strcmp(arg, "n") == 0) {
i++;
if (i < argc) {
tmaxlen = atoi(argv[i]);
if (tmaxlen > 0)
maxlen = min(max((LEN_MIN), tmaxlen), (LEN_MAX));
do_plen = 1;
}
} else if (strcmp(arg, "s") == 0)
do_simple = 1;
else if (strcmp(arg, "l") == 0)
do_simple = 0;
else if (strcmp(arg, "v") == 0)
do_verbose = 1;
else if (strcmp(arg, "q") == 0)
do_verbose = 0;
}
}
if (do_pbuf || do_verbose)
printf("Using bufsz %zu\n", bufsz);
if (do_plen || do_verbose)
printf("Using maxlen %zu\n", maxlen);
for (i = 1; i < argc; i++) {
if (argv[i][0] == '-') {
arg = argv[i] + 1;
if ((strcmp(arg, "b") == 0) || (strcmp(arg, "n") == 0))
i++; /* Skip next arg */
else if (!((strcmp(arg, "s") == 0) || (strcmp(arg, "l") == 0) || (strcmp(arg, "v") == 0) || (strcmp(arg, "q") == 0))) {
time_copy(argv[i], do_simple, do_verbose, bufsz, maxlen);
numfl++;
}
} else {
time_copy(argv[i], do_simple, do_verbose, bufsz, maxlen);
numfl++;
}
}
if (numfl == 0)
fprintf(stderr, "%s: Please specify a file\n", argv[0]);
return 0;
} /* int main(int argc, char *argv[]) */