glusterfs

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#define _GNU_SOURCE
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <glusterfs/api/glfs.h>
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#include <glusterfs/api/glfs-handles.h>
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enum fallocate_flag {
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    TEST_FALLOCATE_NONE,
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    TEST_FALLOCATE_KEEP_SIZE,
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    TEST_FALLOCATE_ZERO_RANGE,
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    TEST_FALLOCATE_PUNCH_HOLE,
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    TEST_FALLOCATE_MAX,
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};
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int
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get_fallocate_flag(int opcode)
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{
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    int ret = 0;
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    switch (opcode) {
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        case TEST_FALLOCATE_NONE:
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            ret = 0;
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            break;
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        case TEST_FALLOCATE_KEEP_SIZE:
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            ret = FALLOC_FL_KEEP_SIZE;
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            break;
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        case TEST_FALLOCATE_ZERO_RANGE:
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            ret = FALLOC_FL_ZERO_RANGE;
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            break;
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        case TEST_FALLOCATE_PUNCH_HOLE:
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            ret = FALLOC_FL_PUNCH_HOLE;
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            break;
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        default:
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            ret = -1;
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            break;
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    }
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    return ret;
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}
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int
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main(int argc, char *argv[])
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{
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    int ret = 1;
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    int opcode = -1;
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    off_t offset = 0;
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    size_t len = 0;
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    glfs_t *fs = NULL;
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    glfs_fd_t *fd = NULL;
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    if (argc != 8) {
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        fprintf(stderr,
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                "Syntax: %s <host> <volname> <opcode> <offset> <len> "
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                "<file-path> <log-file>\n",
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                argv[0]);
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        return 1;
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    }
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    fs = glfs_new(argv[2]);
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    if (!fs) {
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        fprintf(stderr, "glfs_new: returned NULL\n");
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        return 1;
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    }
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    ret = glfs_set_volfile_server(fs, "tcp", argv[1], 24007);
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    if (ret != 0) {
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        fprintf(stderr, "glfs_set_volfile_server: returned %d\n", ret);
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        goto out;
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    }
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    ret = glfs_set_logging(fs, argv[7], 7);
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    if (ret != 0) {
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        fprintf(stderr, "glfs_set_logging: returned %d\n", ret);
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        goto out;
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    }
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    ret = glfs_init(fs);
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    if (ret != 0) {
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        fprintf(stderr, "glfs_init: returned %d\n", ret);
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        goto out;
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    }
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    opcode = atoi(argv[3]);
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    opcode = get_fallocate_flag(opcode);
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    if (opcode < 0) {
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        fprintf(stderr, "get_fallocate_flag: invalid flag \n");
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        goto out;
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    }
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    /* Note that off_t is signed but size_t isn't. */
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    offset = strtol(argv[4], NULL, 10);
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    len = strtoul(argv[5], NULL, 10);
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    fd = glfs_open(fs, argv[6], O_RDWR);
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    if (fd == NULL) {
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        fprintf(stderr, "glfs_open: returned NULL\n");
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        goto out;
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    }
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    ret = glfs_fallocate(fd, opcode, offset, len);
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    if (ret < 0) {
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        fprintf(stderr, "glfs_fallocate: returned %d\n", ret);
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        goto out;
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    }
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    ret = glfs_unlink(fs, argv[6]);
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    if (ret < 0) {
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        fprintf(stderr, "glfs_unlink: returned %d\n", ret);
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        goto out;
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    }
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    /* Sleep for 3s to give enough time for background deletion to complete
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     * during which if the bug exists, the process will crash.
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     */
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    sleep(3);
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    ret = 0;
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out:
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    if (fd)
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        glfs_close(fd);
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    glfs_fini(fs);
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    return ret;
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}
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