darshan-posix.c 57.1 KB
Newer Older
1 2 3 4 5
/*
 *  (C) 2009 by Argonne National Laboratory.
 *      See COPYRIGHT in top-level directory.
 */

6
#include "darshan-runtime-config.h"
7 8 9 10 11 12 13 14 15 16 17 18 19 20
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdarg.h>
#include <string.h>
#include <time.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/uio.h>
#include <sys/mman.h>
#include <search.h>
#include <assert.h>
21
#include <libgen.h>
22
#include <limits.h>
Philip Carns's avatar
Philip Carns committed
23
#include <aio.h>
24 25
#define __USE_GNU
#include <pthread.h>
26 27 28

#include "darshan.h"

29
#ifndef HAVE_OFF64_T
30 31 32
typedef int64_t off64_t;
#endif

33 34
extern char* __progname_full;

35
#ifdef DARSHAN_PRELOAD
36 37 38
#define __USE_GNU
#include <dlfcn.h>
#include <stdlib.h>
39

40 41 42 43 44
#define DARSHAN_FORWARD_DECL(name,ret,args) \
  ret (*__real_ ## name)args = NULL;

#define DARSHAN_DECL(__name) __name

45 46 47 48 49 50 51 52 53 54 55 56 57
#define DARSHAN_MPI_CALL(func) __real_ ## func

#define MAP_OR_FAIL(func) \
    if (!(__real_ ## func)) \
    { \
        __real_ ## func = dlsym(RTLD_NEXT, #func); \
        if(!(__real_ ## func)) { \
           fprintf(stderr, "Darshan failed to map symbol: %s\n", #func); \
           exit(1); \
       } \
    }


58
extern double (*__real_PMPI_Wtime)(void);
59

60 61 62 63 64 65 66
#else

#define DARSHAN_FORWARD_DECL(name,ret,args) \
  extern ret __real_ ## name args;

#define DARSHAN_DECL(__name) __wrap_ ## __name

67 68 69 70
#define MAP_OR_FAIL(func)

#define DARSHAN_MPI_CALL(func) func

71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104
#endif

DARSHAN_FORWARD_DECL(creat, int, (const char* path, mode_t mode));
DARSHAN_FORWARD_DECL(creat64, int, (const char* path, mode_t mode));
DARSHAN_FORWARD_DECL(open, int, (const char *path, int flags, ...));
DARSHAN_FORWARD_DECL(open64, int, (const char *path, int flags, ...));
DARSHAN_FORWARD_DECL(close, int, (int fd));
DARSHAN_FORWARD_DECL(write, ssize_t, (int fd, const void *buf, size_t count));
DARSHAN_FORWARD_DECL(read, ssize_t, (int fd, void *buf, size_t count));
DARSHAN_FORWARD_DECL(lseek, off_t, (int fd, off_t offset, int whence));
DARSHAN_FORWARD_DECL(lseek64, off64_t, (int fd, off64_t offset, int whence));
DARSHAN_FORWARD_DECL(pread, ssize_t, (int fd, void *buf, size_t count, off_t offset));
DARSHAN_FORWARD_DECL(pread64, ssize_t, (int fd, void *buf, size_t count, off64_t offset));
DARSHAN_FORWARD_DECL(pwrite, ssize_t, (int fd, const void *buf, size_t count, off_t offset));
DARSHAN_FORWARD_DECL(pwrite64, ssize_t, (int fd, const void *buf, size_t count, off64_t offset
));
DARSHAN_FORWARD_DECL(readv, ssize_t, (int fd, const struct iovec *iov, int iovcnt));
DARSHAN_FORWARD_DECL(writev, ssize_t, (int fd, const struct iovec *iov, int iovcnt));
DARSHAN_FORWARD_DECL(__fxstat, int, (int vers, int fd, struct stat *buf));
DARSHAN_FORWARD_DECL(__fxstat64, int, (int vers, int fd, struct stat64 *buf));
DARSHAN_FORWARD_DECL(__lxstat, int, (int vers, const char* path, struct stat *buf));
DARSHAN_FORWARD_DECL(__lxstat64, int, (int vers, const char* path, struct stat64 *buf));
DARSHAN_FORWARD_DECL(__xstat, int, (int vers, const char* path, struct stat *buf));
DARSHAN_FORWARD_DECL(__xstat64, int, (int vers, const char* path, struct stat64 *buf));
DARSHAN_FORWARD_DECL(mmap, void*, (void *addr, size_t length, int prot, int flags, int fd, off_t offset));
DARSHAN_FORWARD_DECL(mmap64, void*, (void *addr, size_t length, int prot, int flags, int fd, off64_t offset));
DARSHAN_FORWARD_DECL(fopen, FILE*, (const char *path, const char *mode));
DARSHAN_FORWARD_DECL(fopen64, FILE*, (const char *path, const char *mode));
DARSHAN_FORWARD_DECL(fclose, int, (FILE *fp));
DARSHAN_FORWARD_DECL(fread, size_t, (void *ptr, size_t size, size_t nmemb, FILE *stream));
DARSHAN_FORWARD_DECL(fwrite, size_t, (const void *ptr, size_t size, size_t nmemb, FILE *stream));
DARSHAN_FORWARD_DECL(fseek, int, (FILE *stream, long offset, int whence));
DARSHAN_FORWARD_DECL(fsync, int, (int fd));
DARSHAN_FORWARD_DECL(fdatasync, int, (int fd));
Philip Carns's avatar
Philip Carns committed
105 106 107 108 109 110 111 112
DARSHAN_FORWARD_DECL(aio_read, int, (struct aiocb *aiocbp));
DARSHAN_FORWARD_DECL(aio_read64, int, (struct aiocb *aiocbp));
DARSHAN_FORWARD_DECL(aio_write, int, (struct aiocb *aiocbp));
DARSHAN_FORWARD_DECL(aio_write64, int, (struct aiocb *aiocbp));
DARSHAN_FORWARD_DECL(lio_listio, int, (int mode, struct aiocb *const aiocb_list[], int nitems, struct sigevent *sevp));
DARSHAN_FORWARD_DECL(lio_listio64, int, (int mode, struct aiocb *const aiocb_list[], int nitems, struct sigevent *sevp));
DARSHAN_FORWARD_DECL(aio_return, ssize_t, (struct aiocb *aiocbp));
DARSHAN_FORWARD_DECL(aio_return64, ssize_t, (struct aiocb *aiocbp));
113

114
pthread_mutex_t cp_mutex = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP;
115 116
struct darshan_job_runtime* darshan_global_job = NULL;
static int my_rank = -1;
117
static struct stat64 cp_stat_buf;
118
static int darshan_mem_alignment = 1;
119

120 121 122 123
/* struct to track information about aio operations in flight */
struct darshan_aio_tracker
{
    double tm1;
124
    struct aiocb *aiocbp;
125 126 127
    struct darshan_aio_tracker* next;
};

128 129 130 131 132 133 134 135 136 137 138 139 140 141 142
/* these are paths that we will not trace */
static char* exclusions[] = {
"/etc/",
"/dev/",
"/usr/",
"/bin/",
"/boot/",
"/lib/",
"/opt/",
"/sbin/",
"/sys/",
"/proc/",
NULL
};

143 144
static double posix_wtime(void);

145 146
static void cp_access_counter(struct darshan_file_runtime* file, ssize_t size,     enum cp_counter_type type);

147 148 149 150 151 152 153 154
static struct darshan_file_ref* ref_by_handle(
    const void* handle,
    int handle_sz,
    enum darshan_handle_type handle_type);

static struct darshan_file_runtime* darshan_file_by_fd(int fd);
static void darshan_file_close_fd(int fd);
static struct darshan_file_runtime* darshan_file_by_name_setfd(const char* name, int fd);
155
static char* clean_path(const char* path);
156 157
static void darshan_aio_tracker_add(struct aiocb *aiocbp);
static struct darshan_aio_tracker* darshan_aio_tracker_del(struct aiocb *aiocbp);
158

Philip Carns's avatar
Philip Carns committed
159
#define CP_RECORD_WRITE(__ret, __fd, __count, __pwrite_flag, __pwrite_offset, __aligned, __stream_flag, __tm1, __tm2) do{ \
160
    size_t stride; \
Philip Carns's avatar
Philip Carns committed
161
    int64_t this_offset; \
162 163
    int64_t file_alignment; \
    struct darshan_file_runtime* file; \
164
    double __elapsed = __tm2-__tm1; \
165 166 167
    if(__ret < 0) break; \
    file = darshan_file_by_fd(__fd); \
    if(!file) break; \
Philip Carns's avatar
Philip Carns committed
168 169 170 171
    if(__pwrite_flag) \
        this_offset = __pwrite_offset; \
    else \
        this_offset = file->offset; \
172
    file_alignment = CP_VALUE(file, CP_FILE_ALIGNMENT); \
Philip Carns's avatar
Philip Carns committed
173
    if(this_offset > file->last_byte_written) \
174
        CP_INC(file, CP_SEQ_WRITES, 1); \
Philip Carns's avatar
Philip Carns committed
175
    if(this_offset == (file->last_byte_written + 1)) \
176
        CP_INC(file, CP_CONSEC_WRITES, 1); \
Philip Carns's avatar
Philip Carns committed
177
    if(this_offset > 0 && this_offset > file->last_byte_written \
178
        && file->last_byte_written != 0) \
Philip Carns's avatar
Philip Carns committed
179
        stride = this_offset - file->last_byte_written - 1; \
180 181
    else \
        stride = 0; \
Philip Carns's avatar
Philip Carns committed
182 183 184
    file->last_byte_written = this_offset + __ret - 1; \
    file->offset = this_offset + __ret; \
    CP_MAX(file, CP_MAX_BYTE_WRITTEN, (this_offset + __ret -1)); \
185 186 187 188 189 190 191 192 193
    CP_INC(file, CP_BYTES_WRITTEN, __ret); \
    if(__stream_flag) \
        CP_INC(file, CP_POSIX_FWRITES, 1); \
    else \
        CP_INC(file, CP_POSIX_WRITES, 1); \
    CP_BUCKET_INC(file, CP_SIZE_WRITE_0_100, __ret); \
    cp_access_counter(file, stride, CP_COUNTER_STRIDE); \
    if(!__aligned) \
        CP_INC(file, CP_MEM_NOT_ALIGNED, 1); \
Philip Carns's avatar
Philip Carns committed
194
    if(file_alignment > 0 && (this_offset % file_alignment) != 0) \
195 196 197 198 199
        CP_INC(file, CP_FILE_NOT_ALIGNED, 1); \
    cp_access_counter(file, __ret, CP_COUNTER_ACCESS); \
    if(file->last_io_type == CP_READ) \
        CP_INC(file, CP_RW_SWITCHES, 1); \
    file->last_io_type = CP_WRITE; \
200
    CP_F_INC_NO_OVERLAP(file, __tm1, __tm2, file->last_posix_write_end, CP_F_POSIX_WRITE_TIME); \
201 202 203
    if(CP_F_VALUE(file, CP_F_WRITE_START_TIMESTAMP) == 0) \
        CP_F_SET(file, CP_F_WRITE_START_TIMESTAMP, __tm1); \
    CP_F_SET(file, CP_F_WRITE_END_TIMESTAMP, __tm2); \
204 205 206
    if(CP_F_VALUE(file, CP_F_MAX_WRITE_TIME) < __elapsed){ \
        CP_F_SET(file, CP_F_MAX_WRITE_TIME, __elapsed); \
        CP_SET(file, CP_MAX_WRITE_TIME_SIZE, __ret); } \
207 208
} while(0)

209
#define CP_RECORD_READ(__ret, __fd, __count, __pread_flag, __pread_offset, __aligned, __stream_flag, __tm1, __tm2) do{ \
210
    size_t stride; \
211
    int64_t this_offset; \
212 213
    struct darshan_file_runtime* file; \
    int64_t file_alignment; \
214
    double __elapsed = __tm2-__tm1; \
215 216 217
    if(__ret < 0) break; \
    file = darshan_file_by_fd(__fd); \
    if(!file) break; \
218 219 220 221
    if(__pread_flag)\
        this_offset = __pread_offset; \
    else \
        this_offset = file->offset; \
222
    file_alignment = CP_VALUE(file, CP_FILE_ALIGNMENT); \
223
    if(this_offset > file->last_byte_read) \
224
        CP_INC(file, CP_SEQ_READS, 1); \
225
    if(this_offset == (file->last_byte_read + 1)) \
226
        CP_INC(file, CP_CONSEC_READS, 1); \
227
    if(this_offset > 0 && this_offset > file->last_byte_read \
228
        && file->last_byte_read != 0) \
229
        stride = this_offset - file->last_byte_read - 1; \
230 231
    else \
        stride = 0; \
232 233 234
    file->last_byte_read = this_offset + __ret - 1; \
    CP_MAX(file, CP_MAX_BYTE_READ, (this_offset + __ret -1)); \
    file->offset = this_offset + __ret; \
235 236 237 238 239 240 241 242 243
    CP_INC(file, CP_BYTES_READ, __ret); \
    if(__stream_flag)\
        CP_INC(file, CP_POSIX_FREADS, 1); \
    else\
        CP_INC(file, CP_POSIX_READS, 1); \
    CP_BUCKET_INC(file, CP_SIZE_READ_0_100, __ret); \
    cp_access_counter(file, stride, CP_COUNTER_STRIDE); \
    if(!__aligned) \
        CP_INC(file, CP_MEM_NOT_ALIGNED, 1); \
Philip Carns's avatar
Philip Carns committed
244
    if(file_alignment > 0 && (this_offset % file_alignment) != 0) \
245 246 247 248 249
        CP_INC(file, CP_FILE_NOT_ALIGNED, 1); \
    cp_access_counter(file, __ret, CP_COUNTER_ACCESS); \
    if(file->last_io_type == CP_WRITE) \
        CP_INC(file, CP_RW_SWITCHES, 1); \
    file->last_io_type = CP_READ; \
250
    CP_F_INC_NO_OVERLAP(file, __tm1, __tm2, file->last_posix_read_end, CP_F_POSIX_READ_TIME); \
251 252 253
    if(CP_F_VALUE(file, CP_F_READ_START_TIMESTAMP) == 0) \
        CP_F_SET(file, CP_F_READ_START_TIMESTAMP, __tm1); \
    CP_F_SET(file, CP_F_READ_END_TIMESTAMP, __tm2); \
254 255 256
    if(CP_F_VALUE(file, CP_F_MAX_READ_TIME) < __elapsed){ \
        CP_F_SET(file, CP_F_MAX_READ_TIME, __elapsed); \
        CP_SET(file, CP_MAX_READ_TIME_SIZE, __ret); } \
257 258
} while(0)

259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276
#define CP_LOOKUP_RECORD_STAT(__path, __statbuf, __tm1, __tm2) do { \
    char* exclude; \
    int tmp_index = 0; \
    struct darshan_file_runtime* file; \
    while((exclude = exclusions[tmp_index])) { \
        if(!(strncmp(exclude, __path, strlen(exclude)))) \
            break; \
        tmp_index++; \
    } \
    if(exclude) break; \
    file = darshan_file_by_name(__path); \
    if (file) \
    { \
        CP_RECORD_STAT(file, __statbuf, __tm1, __tm2); \
    } \
} while(0)

    
277
#define CP_RECORD_STAT(__file, __statbuf, __tm1, __tm2) do { \
278
    if(!CP_VALUE((__file), CP_POSIX_STATS) && !CP_VALUE((__file), CP_POSIX_OPENS)){ \
279 280 281 282
        CP_SET((__file), CP_FILE_ALIGNMENT, (__statbuf)->st_blksize); \
        CP_SET((__file), CP_SIZE_AT_OPEN, (__statbuf)->st_size); \
    }\
    (__file)->log_file->rank = my_rank; \
283
    CP_F_INC_NO_OVERLAP(file, __tm1, __tm2, file->last_posix_meta_end, CP_F_POSIX_META_TIME); \
284 285 286
    CP_INC(__file, CP_POSIX_STATS, 1); \
} while(0)

Philip Carns's avatar
Philip Carns committed
287
#ifdef __CP_STAT_AT_OPEN
288
#define CP_STAT_FILE(_f, _p, _r) do { \
289
    if(!CP_VALUE((_f), CP_POSIX_STATS) && !CP_VALUE((_f), CP_POSIX_OPENS)){ \
290
        if(fstat64(_r, &cp_stat_buf) == 0) { \
Philip Carns's avatar
Philip Carns committed
291 292 293 294 295 296
            CP_SET(_f, CP_FILE_ALIGNMENT, cp_stat_buf.st_blksize); \
            CP_SET(_f, CP_SIZE_AT_OPEN, cp_stat_buf.st_size); \
        }\
    }\
}while(0)
#else
297
#define CP_STAT_FILE(_f, _p, _r) do { }while(0)
Philip Carns's avatar
Philip Carns committed
298 299
#endif

300 301 302 303 304 305 306 307 308 309 310
#define CP_RECORD_OPEN(__ret, __path, __mode, __stream_flag, __tm1, __tm2) do { \
    struct darshan_file_runtime* file; \
    char* exclude; \
    int tmp_index = 0; \
    if(__ret < 0) break; \
    while((exclude = exclusions[tmp_index])) { \
        if(!(strncmp(exclude, __path, strlen(exclude)))) \
            break; \
        tmp_index++; \
    } \
    if(exclude) break; \
311
    file = darshan_file_by_name_setfd(__path, __ret); \
312
    if(!file) break; \
313
    CP_STAT_FILE(file, __path, __ret); \
314 315 316 317 318 319 320 321 322 323 324
    file->log_file->rank = my_rank; \
    if(__mode) \
        CP_SET(file, CP_MODE, __mode); \
    file->offset = 0; \
    file->last_byte_written = 0; \
    file->last_byte_read = 0; \
    if(__stream_flag)\
        CP_INC(file, CP_POSIX_FOPENS, 1); \
    else \
        CP_INC(file, CP_POSIX_OPENS, 1); \
    if(CP_F_VALUE(file, CP_F_OPEN_TIMESTAMP) == 0) \
325
        CP_F_SET(file, CP_F_OPEN_TIMESTAMP, posix_wtime()); \
326
    CP_F_INC_NO_OVERLAP(file, __tm1, __tm2, file->last_posix_meta_end, CP_F_POSIX_META_TIME); \
327 328
} while (0)

329
int DARSHAN_DECL(close)(int fd)
330 331 332 333 334 335
{
    struct darshan_file_runtime* file;
    int tmp_fd = fd;
    double tm1, tm2;
    int ret;

336 337
    MAP_OR_FAIL(close);

338 339 340 341 342 343 344 345 346 347
    tm1 = darshan_wtime();
    ret = __real_close(fd);
    tm2 = darshan_wtime();

    CP_LOCK();
    file = darshan_file_by_fd(tmp_fd);
    if(file)
    {
        file->last_byte_written = 0;
        file->last_byte_read = 0;
348
        CP_F_SET(file, CP_F_CLOSE_TIMESTAMP, posix_wtime());
349
        CP_F_INC_NO_OVERLAP(file, tm1, tm2, file->last_posix_meta_end, CP_F_POSIX_META_TIME);
350
        darshan_file_close_fd(tmp_fd);
351 352 353 354 355 356
    }
    CP_UNLOCK();

    return(ret);
}

357
int DARSHAN_DECL(fclose)(FILE *fp)
358 359 360 361 362 363
{
    struct darshan_file_runtime* file;
    int tmp_fd = fileno(fp);
    double tm1, tm2;
    int ret;

364 365
    MAP_OR_FAIL(fclose);

366 367 368 369 370 371 372 373 374 375
    tm1 = darshan_wtime();
    ret = __real_fclose(fp);
    tm2 = darshan_wtime();
    
    CP_LOCK();
    file = darshan_file_by_fd(tmp_fd);
    if(file)
    {
        file->last_byte_written = 0;
        file->last_byte_read = 0;
376
        CP_F_SET(file, CP_F_CLOSE_TIMESTAMP, posix_wtime());
377
        CP_F_INC_NO_OVERLAP(file, tm1, tm2, file->last_posix_meta_end, CP_F_POSIX_META_TIME);
378
        darshan_file_close_fd(tmp_fd);
379 380 381 382 383 384 385
    }
    CP_UNLOCK();

    return(ret);
}


386
int DARSHAN_DECL(fsync)(int fd)
387 388 389 390 391
{
    int ret;
    struct darshan_file_runtime* file;
    double tm1, tm2;

392 393
    MAP_OR_FAIL(fsync);

394 395 396 397 398 399 400 401 402 403 404
    tm1 = darshan_wtime();
    ret = __real_fsync(fd);
    tm2 = darshan_wtime();

    if(ret < 0)
        return(ret);

    CP_LOCK();
    file = darshan_file_by_fd(fd);
    if(file)
    {
405
        CP_F_INC_NO_OVERLAP(file, tm1, tm2, file->last_posix_write_end, CP_F_POSIX_WRITE_TIME); \
406 407 408 409 410 411 412
        CP_INC(file, CP_POSIX_FSYNCS, 1);
    }
    CP_UNLOCK();

    return(ret);
}

413
int DARSHAN_DECL(fdatasync)(int fd)
414 415 416 417 418
{
    int ret;
    struct darshan_file_runtime* file;
    double tm1, tm2;

419 420
    MAP_OR_FAIL(fdatasync);

421 422 423 424 425 426 427 428 429 430
    tm1 = darshan_wtime();
    ret = __real_fdatasync(fd);
    tm2 = darshan_wtime();
    if(ret < 0)
        return(ret);

    CP_LOCK();
    file = darshan_file_by_fd(fd);
    if(file)
    {
431
        CP_F_INC_NO_OVERLAP(file, tm1, tm2, file->last_posix_write_end, CP_F_POSIX_WRITE_TIME); \
432 433 434 435 436 437 438 439
        CP_INC(file, CP_POSIX_FDSYNCS, 1);
    }
    CP_UNLOCK();

    return(ret);
}


440
void* DARSHAN_DECL(mmap64)(void *addr, size_t length, int prot, int flags,
441 442 443 444 445
    int fd, off64_t offset)
{
    void* ret;
    struct darshan_file_runtime* file;

446 447
    MAP_OR_FAIL(mmap64);

448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463
    ret = __real_mmap64(addr, length, prot, flags, fd, offset);
    if(ret == MAP_FAILED)
        return(ret);

    CP_LOCK();
    file = darshan_file_by_fd(fd);
    if(file)
    {
        CP_INC(file, CP_POSIX_MMAPS, 1);
    }
    CP_UNLOCK();

    return(ret);
}


464
void* DARSHAN_DECL(mmap)(void *addr, size_t length, int prot, int flags,
465 466 467 468 469
    int fd, off_t offset)
{
    void* ret;
    struct darshan_file_runtime* file;

470 471
    MAP_OR_FAIL(mmap);

472 473 474 475 476 477 478 479 480 481 482 483 484 485 486
    ret = __real_mmap(addr, length, prot, flags, fd, offset);
    if(ret == MAP_FAILED)
        return(ret);

    CP_LOCK();
    file = darshan_file_by_fd(fd);
    if(file)
    {
        CP_INC(file, CP_POSIX_MMAPS, 1);
    }
    CP_UNLOCK();

    return(ret);
}

487
int DARSHAN_DECL(creat)(const char* path, mode_t mode)
488 489 490 491
{
    int ret;
    double tm1, tm2;

492 493
    MAP_OR_FAIL(creat);

494 495 496 497 498 499 500 501 502 503 504
    tm1 = darshan_wtime();
    ret = __real_creat(path, mode);
    tm2 = darshan_wtime();

    CP_LOCK();
    CP_RECORD_OPEN(ret, path, mode, 0, tm1, tm2);
    CP_UNLOCK();

    return(ret);
}

505
int DARSHAN_DECL(creat64)(const char* path, mode_t mode)
506 507 508 509
{
    int ret;
    double tm1, tm2;

510 511
    MAP_OR_FAIL(creat64);

512 513 514 515 516 517 518 519 520 521 522
    tm1 = darshan_wtime();
    ret = __real_creat64(path, mode);
    tm2 = darshan_wtime();

    CP_LOCK();
    CP_RECORD_OPEN(ret, path, mode, 0, tm1, tm2);
    CP_UNLOCK();

    return(ret);
}

523
int DARSHAN_DECL(open64)(const char* path, int flags, ...)
524 525 526 527 528
{
    int mode = 0;
    int ret;
    double tm1, tm2;

529 530
    MAP_OR_FAIL(open64);

531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555
    if (flags & O_CREAT) 
    {
        va_list arg;
        va_start(arg, flags);
        mode = va_arg(arg, int);
        va_end(arg);

        tm1 = darshan_wtime();
        ret = __real_open64(path, flags, mode);
        tm2 = darshan_wtime();
    }
    else
    {
        tm1 = darshan_wtime();
        ret = __real_open64(path, flags);
        tm2 = darshan_wtime();
    }

    CP_LOCK();
    CP_RECORD_OPEN(ret, path, mode, 0, tm1, tm2);
    CP_UNLOCK();

    return(ret);
}

556
int DARSHAN_DECL(open)(const char *path, int flags, ...)
557 558 559 560 561
{
    int mode = 0;
    int ret;
    double tm1, tm2;

562 563
    MAP_OR_FAIL(open);

564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588
    if (flags & O_CREAT) 
    {
        va_list arg;
        va_start(arg, flags);
        mode = va_arg(arg, int);
        va_end(arg);

        tm1 = darshan_wtime();
        ret = __real_open(path, flags, mode);
        tm2 = darshan_wtime();
    }
    else
    {
        tm1 = darshan_wtime();
        ret = __real_open(path, flags);
        tm2 = darshan_wtime();
    }

    CP_LOCK();
    CP_RECORD_OPEN(ret, path, mode, 0, tm1, tm2);
    CP_UNLOCK();

    return(ret);
}

589
FILE* DARSHAN_DECL(fopen64)(const char *path, const char *mode)
590 591 592 593 594
{
    FILE* ret;
    int fd;
    double tm1, tm2;

595 596
    MAP_OR_FAIL(fopen64);

597 598 599 600 601 602 603 604 605 606 607 608 609 610 611
    tm1 = darshan_wtime();
    ret = __real_fopen64(path, mode);
    tm2 = darshan_wtime();
    if(ret == 0)
        fd = -1;
    else
        fd = fileno(ret);

    CP_LOCK();
    CP_RECORD_OPEN(fd, path, 0, 1, tm1, tm2);
    CP_UNLOCK();

    return(ret);
}

612
FILE* DARSHAN_DECL(fopen)(const char *path, const char *mode)
613 614 615 616 617
{
    FILE* ret;
    int fd;
    double tm1, tm2;

618 619
    MAP_OR_FAIL(fopen);

620 621 622 623 624 625 626 627 628 629 630 631 632 633 634
    tm1 = darshan_wtime();
    ret = __real_fopen(path, mode);
    tm2 = darshan_wtime();
    if(ret == 0)
        fd = -1;
    else
        fd = fileno(ret);

    CP_LOCK();
    CP_RECORD_OPEN(fd, path, 0, 1, tm1, tm2);
    CP_UNLOCK();

    return(ret);
}

635
int DARSHAN_DECL(__xstat64)(int vers, const char *path, struct stat64 *buf)
636 637 638 639
{
    int ret;
    double tm1, tm2;

640 641
    MAP_OR_FAIL(__xstat64);

642 643 644 645 646 647 648
    tm1 = darshan_wtime();
    ret = __real___xstat64(vers, path, buf);
    tm2 = darshan_wtime();
    if(ret < 0 || !S_ISREG(buf->st_mode))
        return(ret);

    CP_LOCK();
649
    CP_LOOKUP_RECORD_STAT(path, buf, tm1, tm2);
650 651 652 653 654
    CP_UNLOCK();

    return(ret);
}

655
int DARSHAN_DECL(__lxstat64)(int vers, const char *path, struct stat64 *buf)
656 657 658 659
{
    int ret;
    double tm1, tm2;

660 661
    MAP_OR_FAIL(__lxstat64);

662 663 664 665 666 667 668
    tm1 = darshan_wtime();
    ret = __real___lxstat64(vers, path, buf);
    tm2 = darshan_wtime();
    if(ret < 0 || !S_ISREG(buf->st_mode))
        return(ret);

    CP_LOCK();
669
    CP_LOOKUP_RECORD_STAT(path, buf, tm1, tm2);
670 671 672 673 674
    CP_UNLOCK();

    return(ret);
}

675
int DARSHAN_DECL(__fxstat64)(int vers, int fd, struct stat64 *buf)
676 677 678 679 680
{
    int ret;
    struct darshan_file_runtime* file;
    double tm1, tm2;

681 682
    MAP_OR_FAIL(__fxstat64);

683 684 685 686 687 688 689 690 691 692 693 694 695 696
    tm1 = darshan_wtime();
    ret = __real___fxstat64(vers, fd, buf);
    tm2 = darshan_wtime();
    if(ret < 0 || !S_ISREG(buf->st_mode))
        return(ret);

    /* skip logging if this was triggered internally */
    if(buf == &cp_stat_buf)
        return(ret);

    CP_LOCK();
    file = darshan_file_by_fd(fd);
    if(file)
    {
697
        CP_RECORD_STAT(file, buf, tm1, tm2);
698 699 700 701 702 703 704
    }
    CP_UNLOCK();

    return(ret);
}


705
int DARSHAN_DECL(__xstat)(int vers, const char *path, struct stat *buf)
706 707 708 709
{
    int ret;
    double tm1, tm2;

710 711
    MAP_OR_FAIL(__xstat);

712 713 714 715 716 717 718
    tm1 = darshan_wtime();
    ret = __real___xstat(vers, path, buf);
    tm2 = darshan_wtime();
    if(ret < 0 || !S_ISREG(buf->st_mode))
        return(ret);

    CP_LOCK();
719
    CP_LOOKUP_RECORD_STAT(path, buf, tm1, tm2);
720 721 722 723 724
    CP_UNLOCK();

    return(ret);
}

725
int DARSHAN_DECL(__lxstat)(int vers, const char *path, struct stat *buf)
726 727 728 729
{
    int ret;
    double tm1, tm2;

730 731
    MAP_OR_FAIL(__lxstat);

732 733 734 735 736 737 738
    tm1 = darshan_wtime();
    ret = __real___lxstat(vers, path, buf);
    tm2 = darshan_wtime();
    if(ret < 0 || !S_ISREG(buf->st_mode))
        return(ret);

    CP_LOCK();
739
    CP_LOOKUP_RECORD_STAT(path, buf, tm1, tm2);
740 741 742 743 744
    CP_UNLOCK();

    return(ret);
}

745
int DARSHAN_DECL(__fxstat)(int vers, int fd, struct stat *buf)
746 747 748 749 750
{
    int ret;
    struct darshan_file_runtime* file;
    double tm1, tm2;

751 752
    MAP_OR_FAIL(__fxstat);

753 754 755 756 757 758 759
    tm1 = darshan_wtime();
    ret = __real___fxstat(vers, fd, buf);
    tm2 = darshan_wtime();
    if(ret < 0 || !S_ISREG(buf->st_mode))
        return(ret);

    /* skip logging if this was triggered internally */
760
    if((void*)buf == (void*)&cp_stat_buf)
761 762 763 764 765 766
        return(ret);

    CP_LOCK();
    file = darshan_file_by_fd(fd);
    if(file)
    {
767
        CP_RECORD_STAT(file, buf, tm1, tm2);
768 769 770 771 772 773
    }
    CP_UNLOCK();

    return(ret);
}

774
ssize_t DARSHAN_DECL(pread64)(int fd, void *buf, size_t count, off64_t offset)
775 776 777 778 779
{
    ssize_t ret;
    int aligned_flag = 0;
    double tm1, tm2;

780 781
    MAP_OR_FAIL(pread64);

782
    if((unsigned long)buf % darshan_mem_alignment == 0)
783 784 785 786 787 788
        aligned_flag = 1;

    tm1 = darshan_wtime();
    ret = __real_pread64(fd, buf, count, offset);
    tm2 = darshan_wtime();
    CP_LOCK();
789
    CP_RECORD_READ(ret, fd, count, 1, offset, aligned_flag, 0, tm1, tm2);
790 791 792 793
    CP_UNLOCK();
    return(ret);
}

794
ssize_t DARSHAN_DECL(pread)(int fd, void *buf, size_t count, off_t offset)
795 796 797 798 799
{
    ssize_t ret;
    int aligned_flag = 0;
    double tm1, tm2;

800 801
    MAP_OR_FAIL(pread);

802
    if((unsigned long)buf % darshan_mem_alignment == 0)
803 804 805 806 807 808
        aligned_flag = 1;

    tm1 = darshan_wtime();
    ret = __real_pread(fd, buf, count, offset);
    tm2 = darshan_wtime();
    CP_LOCK();
809
    CP_RECORD_READ(ret, fd, count, 1, offset, aligned_flag, 0, tm1, tm2);
810 811 812 813 814
    CP_UNLOCK();
    return(ret);
}


815
ssize_t DARSHAN_DECL(pwrite)(int fd, const void *buf, size_t count, off_t offset)
816 817 818 819 820
{
    ssize_t ret;
    int aligned_flag = 0;
    double tm1, tm2;

821 822
    MAP_OR_FAIL(pwrite);

823
    if((unsigned long)buf % darshan_mem_alignment == 0)
824 825 826 827 828 829
        aligned_flag = 1;

    tm1 = darshan_wtime();
    ret = __real_pwrite(fd, buf, count, offset);
    tm2 = darshan_wtime();
    CP_LOCK();
Philip Carns's avatar
Philip Carns committed
830
    CP_RECORD_WRITE(ret, fd, count, 1, offset, aligned_flag, 0, tm1, tm2);
831 832 833 834
    CP_UNLOCK();
    return(ret);
}

835
ssize_t DARSHAN_DECL(pwrite64)(int fd, const void *buf, size_t count, off64_t offset)
836 837 838 839 840
{
    ssize_t ret;
    int aligned_flag = 0;
    double tm1, tm2;

841 842
    MAP_OR_FAIL(pwrite64);

843
    if((unsigned long)buf % darshan_mem_alignment == 0)
844 845 846 847 848 849
        aligned_flag = 1;

    tm1 = darshan_wtime();
    ret = __real_pwrite64(fd, buf, count, offset);
    tm2 = darshan_wtime();
    CP_LOCK();
Philip Carns's avatar
Philip Carns committed
850
    CP_RECORD_WRITE(ret, fd, count, 1, offset, aligned_flag, 0, tm1, tm2);
851 852 853 854
    CP_UNLOCK();
    return(ret);
}

855
ssize_t DARSHAN_DECL(readv)(int fd, const struct iovec *iov, int iovcnt)
856 857 858 859 860 861
{
    ssize_t ret;
    int aligned_flag = 1;
    int i;
    double tm1, tm2;

862 863
    MAP_OR_FAIL(readv);

864 865
    for(i=0; i<iovcnt; i++)
    {
866
        if(((unsigned long)iov[i].iov_base % darshan_mem_alignment) != 0)
867 868 869 870 871 872 873
            aligned_flag = 0;
    }

    tm1 = darshan_wtime();
    ret = __real_readv(fd, iov, iovcnt);
    tm2 = darshan_wtime();
    CP_LOCK();
874
    CP_RECORD_READ(ret, fd, count, 0, 0, aligned_flag, 0, tm1, tm2);
875 876 877 878
    CP_UNLOCK();
    return(ret);
}

879
ssize_t DARSHAN_DECL(writev)(int fd, const struct iovec *iov, int iovcnt)
880 881 882 883 884 885
{
    ssize_t ret;
    int aligned_flag = 1;
    int i;
    double tm1, tm2;

886 887
    MAP_OR_FAIL(writev);

888 889
    for(i=0; i<iovcnt; i++)
    {
890
        if(!((unsigned long)iov[i].iov_base % darshan_mem_alignment == 0))
891 892 893 894 895 896 897
            aligned_flag = 0;
    }

    tm1 = darshan_wtime();
    ret = __real_writev(fd, iov, iovcnt);
    tm2 = darshan_wtime();
    CP_LOCK();
Philip Carns's avatar
Philip Carns committed
898
    CP_RECORD_WRITE(ret, fd, count, 0, 0, aligned_flag, 0, tm1, tm2);
899 900 901 902
    CP_UNLOCK();
    return(ret);
}

903
size_t DARSHAN_DECL(fread)(void *ptr, size_t size, size_t nmemb, FILE *stream)
904 905 906 907 908
{
    size_t ret;
    int aligned_flag = 0;
    double tm1, tm2;

909 910
    MAP_OR_FAIL(fread);

911
    if((unsigned long)ptr % darshan_mem_alignment == 0)
912 913 914 915 916 917 918
        aligned_flag = 1;

    tm1 = darshan_wtime();
    ret = __real_fread(ptr, size, nmemb, stream);
    tm2 = darshan_wtime();
    CP_LOCK();
    if(ret > 0)
919
        CP_RECORD_READ(size*ret, fileno(stream), (size*nmemb), 0, 0, aligned_flag, 1, tm1, tm2);
920
    else
921
        CP_RECORD_READ(ret, fileno(stream), (size*nmemb), 0, 0, aligned_flag, 1, tm1, tm2);
922 923 924 925
    CP_UNLOCK();
    return(ret);
}

926
ssize_t DARSHAN_DECL(read)(int fd, void *buf, size_t count)
927 928 929 930 931
{
    ssize_t ret;
    int aligned_flag = 0;
    double tm1, tm2;

932 933
    MAP_OR_FAIL(read);

934
    if((unsigned long)buf % darshan_mem_alignment == 0)
935 936 937 938 939 940
        aligned_flag = 1;

    tm1 = darshan_wtime();
    ret = __real_read(fd, buf, count);
    tm2 = darshan_wtime();
    CP_LOCK();
941
    CP_RECORD_READ(ret, fd, count, 0, 0, aligned_flag, 0, tm1, tm2);
942 943 944 945
    CP_UNLOCK();
    return(ret);
}

946
ssize_t DARSHAN_DECL(write)(int fd, const void *buf, size_t count)
947 948 949 950 951
{
    ssize_t ret;
    int aligned_flag = 0;
    double tm1, tm2;

952 953
    MAP_OR_FAIL(write);

954
    if((unsigned long)buf % darshan_mem_alignment == 0)
955 956 957 958 959 960
        aligned_flag = 1;

    tm1 = darshan_wtime();
    ret = __real_write(fd, buf, count);
    tm2 = darshan_wtime();
    CP_LOCK();
Philip Carns's avatar
Philip Carns committed
961
    CP_RECORD_WRITE(ret, fd, count, 0, 0, aligned_flag, 0, tm1, tm2);
962 963 964 965
    CP_UNLOCK();
    return(ret);
}

966
size_t DARSHAN_DECL(fwrite)(const void *ptr, size_t size, size_t nmemb, FILE *stream)
967 968 969 970 971
{
    size_t ret;
    int aligned_flag = 0;
    double tm1, tm2;

972 973
    MAP_OR_FAIL(fwrite);

974
    if((unsigned long)ptr % darshan_mem_alignment == 0)
975 976 977 978 979 980 981
        aligned_flag = 1;

    tm1 = darshan_wtime();
    ret = __real_fwrite(ptr, size, nmemb, stream);
    tm2 = darshan_wtime();
    CP_LOCK();
    if(ret > 0)
Philip Carns's avatar
Philip Carns committed
982
        CP_RECORD_WRITE(size*ret, fileno(stream), (size*nmemb), 0, 0, aligned_flag, 1, tm1, tm2);
983
    else
Philip Carns's avatar
Philip Carns committed
984
        CP_RECORD_WRITE(ret, fileno(stream), 0, 0, 0, aligned_flag, 1, tm1, tm2);
985 986 987 988
    CP_UNLOCK();
    return(ret);
}

989
off64_t DARSHAN_DECL(lseek64)(int fd, off64_t offset, int whence)
990
{
Philip Carns's avatar
Philip Carns committed
991
    off64_t ret;
992 993 994
    struct darshan_file_runtime* file;
    double tm1, tm2;

995 996
    MAP_OR_FAIL(lseek64);

997 998 999 1000 1001 1002 1003 1004 1005 1006
    tm1 = darshan_wtime();
    ret = __real_lseek64(fd, offset, whence);
    tm2 = darshan_wtime();
    if(ret >= 0)
    {
        CP_LOCK();
        file = darshan_file_by_fd(fd);
        if(file)
        {
            file->offset = ret;
1007
            CP_F_INC_NO_OVERLAP(file, tm1, tm2, file->last_posix_meta_end, CP_F_POSIX_META_TIME);
1008 1009 1010 1011 1012 1013 1014
            CP_INC(file, CP_POSIX_SEEKS, 1);
        }
        CP_UNLOCK();
    }
    return(ret);
}

1015
off_t DARSHAN_DECL(lseek)(int fd, off_t offset, int whence)
1016 1017 1018 1019 1020
{
    off_t ret;
    struct darshan_file_runtime* file;
    double tm1, tm2;

1021 1022
    MAP_OR_FAIL(lseek);

1023 1024 1025 1026 1027 1028 1029 1030 1031 1032
    tm1 = darshan_wtime();
    ret = __real_lseek(fd, offset, whence);
    tm2 = darshan_wtime();
    if(ret >= 0)
    {
        CP_LOCK();
        file = darshan_file_by_fd(fd);
        if(file)
        {
            file->offset = ret;
1033
            CP_F_INC_NO_OVERLAP(file, tm1, tm2, file->last_posix_meta_end, CP_F_POSIX_META_TIME);
1034 1035 1036 1037 1038 1039 1040
            CP_INC(file, CP_POSIX_SEEKS, 1);
        }
        CP_UNLOCK();
    }
    return(ret);
}

Philip Carns's avatar
Philip Carns committed
1041 1042 1043
ssize_t DARSHAN_DECL(aio_return64)(struct aiocb *aiocbp)
{
    int ret;
1044 1045 1046
    double tm2;
    struct darshan_aio_tracker *tmp;
    int aligned_flag = 0;
Philip Carns's avatar
Philip Carns committed
1047 1048 1049 1050

    MAP_OR_FAIL(aio_return64);

    ret = __real_aio_return64(aiocbp);
1051 1052 1053 1054 1055 1056 1057 1058
    tm2 = darshan_wtime();
    tmp = darshan_aio_tracker_del(aiocbp);

    if(tmp)
    {
        if((unsigned long)aiocbp->aio_buf % darshan_mem_alignment == 0)
            aligned_flag = 1;
        CP_LOCK();
1059 1060 1061 1062 1063 1064 1065 1066 1067 1068
        if(aiocbp->aio_lio_opcode == LIO_WRITE)
        {
            CP_RECORD_WRITE(ret, aiocbp->aio_fildes, aiocbp->aio_nbytes,
                1, aiocbp->aio_offset, aligned_flag, 0, tmp->tm1, tm2);
        }
        if(aiocbp->aio_lio_opcode == LIO_READ)
        {
            CP_RECORD_READ(ret, aiocbp->aio_fildes, aiocbp->aio_nbytes,
                1, aiocbp->aio_offset, aligned_flag, 0, tmp->tm1, tm2);
        }
1069 1070 1071
        CP_UNLOCK();
        free(tmp);
    }
Philip Carns's avatar
Philip Carns committed
1072 1073 1074 1075 1076 1077 1078

    return(ret);
}

ssize_t DARSHAN_DECL(aio_return)(struct aiocb *aiocbp)
{
    int ret;
1079 1080 1081
    double tm2;
    struct darshan_aio_tracker *tmp;
    int aligned_flag = 0;
Philip Carns's avatar
Philip Carns committed
1082 1083 1084 1085

    MAP_OR_FAIL(aio_return);

    ret = __real_aio_return(aiocbp);
1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098
    tm2 = darshan_wtime();
    tmp = darshan_aio_tracker_del(aiocbp);

    if(tmp)
    {
        if((unsigned long)aiocbp->aio_buf % darshan_mem_alignment == 0)
            aligned_flag = 1;
        CP_LOCK();
        CP_RECORD_WRITE(ret, aiocbp->aio_fildes, aiocbp->aio_nbytes,
            1, aiocbp->aio_offset, aligned_flag, 0, tmp->tm1, tm2);
        CP_UNLOCK();
        free(tmp);
    }
Philip Carns's avatar
Philip Carns committed
1099 1100 1101 1102 1103 1104 1105 1106

    return(ret);
}

int DARSHAN_DECL(lio_listio)(int mode, struct aiocb *const aiocb_list[],
    int nitems, struct sigevent *sevp)
{
    int ret;
Philip Carns's avatar
Philip Carns committed
1107
    int i;
Philip Carns's avatar
Philip Carns committed
1108 1109 1110 1111

    MAP_OR_FAIL(lio_listio);

    ret = __real_lio_listio(mode, aiocb_list, nitems, sevp);
Philip Carns's avatar
Philip Carns committed
1112 1113 1114 1115 1116 1117 1118
    if(ret == 0)
    {
        for(i=0; i<nitems; i++)
        {
            darshan_aio_tracker_add(aiocb_list[i]);        
        }
    }
Philip Carns's avatar
Philip Carns committed
1119 1120 1121 1122 1123 1124 1125 1126

    return(ret);
}

int DARSHAN_DECL(lio_listio64)(int mode, struct aiocb *const aiocb_list[],
    int nitems, struct sigevent *sevp)
{
    int ret;
Philip Carns's avatar
Philip Carns committed
1127
    int i;
Philip Carns's avatar
Philip Carns committed
1128

Philip Carns's avatar
Philip Carns committed
1129
    MAP_OR_FAIL(lio_listio);
Philip Carns's avatar
Philip Carns committed
1130

Philip Carns's avatar
Philip Carns committed
1131 1132 1133 1134 1135 1136 1137 1138
    ret = __real_lio_listio(mode, aiocb_list, nitems, sevp);
    if(ret == 0)
    {
        for(i=0; i<nitems; i++)
        {
            darshan_aio_tracker_add(aiocb_list[i]);        
        }
    }
Philip Carns's avatar
Philip Carns committed
1139 1140 1141