From 23b12455796ec453ca35e94ab49e7629d7f9aced Mon Sep 17 00:00:00 2001 From: Prasanna Kumar Kalever Date: Sun, 5 Feb 2017 20:23:20 +0530 Subject: gluster-block: migrate build to libtoolz and create rpm Till now we had simple makefile for checking dependencies and building. Using libtoolz will give more control on dependency checks and flexibility. This patch also introduce rpm build feature. Compiling: $ ./autogen.sh $ ./configure $ make -j $ make install Building RPMS: $ make rpms Running: $ systemctl start gluster-blockd.service Using CLI: $ gluster-block help Signed-off-by: Prasanna Kumar Kalever --- rpc/glfs-operations.c | 270 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 270 insertions(+) create mode 100644 rpc/glfs-operations.c (limited to 'rpc/glfs-operations.c') diff --git a/rpc/glfs-operations.c b/rpc/glfs-operations.c new file mode 100644 index 0000000..9712f64 --- /dev/null +++ b/rpc/glfs-operations.c @@ -0,0 +1,270 @@ +/* + Copyright (c) 2016 Red Hat, Inc. + This file is part of gluster-block. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ + + +# include "common.h" +# include "glfs-operations.h" + +# define METADIR "/block-meta" +# define TXLOCKFILE "meta.lock" + + + +struct glfs * +glusterBlockVolumeInit(char *volume, char *volfileserver) +{ + struct glfs *glfs; + int ret; + + + glfs = glfs_new(volume); + if (!glfs) { + LOG("gfapi", GB_LOG_ERROR, "glfs_new(%s) from %s failed[%s]", volume, + volfileserver, strerror(errno)); + return NULL; + } + + ret = glfs_set_volfile_server(glfs, "tcp", volfileserver, 24007); + if (ret) { + LOG("gfapi", GB_LOG_ERROR, "glfs_set_volfile_server(%s) of %s " + "failed[%s]", volfileserver, volume, strerror(errno)); + goto out; + } + + ret = glfs_set_logging(glfs, GFAPI_LOG_FILE, GFAPI_LOG_LEVEL); + if (ret) { + LOG("gfapi", GB_LOG_ERROR, "glfs_set_logging(%s, %d) on %s failed[%s]", + GFAPI_LOG_FILE, GFAPI_LOG_LEVEL, volume, strerror(errno)); + goto out; + } + + ret = glfs_init(glfs); + if (ret) { + LOG("gfapi", GB_LOG_ERROR, "glfs_init() on %s failed[%s]", volume, + strerror(errno) ); + goto out; + } + + return glfs; + + out: + glfs_fini(glfs); + + return NULL; +} + + +int +glusterBlockCreateEntry(blockCreateCli *blk, char *gbid) +{ + struct glfs *glfs; + struct glfs_fd *tgfd; + int ret = -1; + + + glfs = glusterBlockVolumeInit(blk->volume, blk->volfileserver); + if (!glfs) { + LOG("gfapi", GB_LOG_ERROR, "glusterBlockVolumeInit(%s): failed", + blk->volume); + goto out; + } + + tgfd = glfs_creat(glfs, gbid, + O_WRONLY | O_CREAT | O_EXCL, + S_IRUSR | S_IWUSR); + if (!tgfd) { + LOG("gfapi", GB_LOG_ERROR, "glfs_creat(%s) on volume %s failed[%s]", + gbid, blk->volume, strerror(errno)); + } else { + ret = glfs_ftruncate(tgfd, blk->size); + if (ret) { + LOG("gfapi", GB_LOG_ERROR, "glfs_ftruncate(%s): on volume %s " + "of size %zu failed[%s]", gbid, blk->volume, blk->size, + strerror(errno)); + goto out; + } + + if (glfs_close(tgfd) != 0) { + LOG("gfapi", GB_LOG_ERROR, "glfs_close(%s): on volume %s failed[%s]", + gbid, blk->volume, strerror(errno)); + goto out; + } + } + + out: + glfs_fini(glfs); + return ret; +} + + +int +glusterBlockDeleteEntry(char *volume, char *gbid) +{ + struct glfs *glfs; + int ret = -1; + + + glfs = glusterBlockVolumeInit(volume, "localhost"); + if (!glfs) { + LOG("gfapi", GB_LOG_ERROR, "glusterBlockVolumeInit(%s): failed", + volume); + goto out; + } + + ret = glfs_unlink(glfs, gbid); + if (ret) { + LOG("gfapi", GB_LOG_ERROR, "glfs_unlink(%s) on volume %s failed[%s]", + gbid, volume, strerror(errno)); + goto out; + } + + out: + glfs_fini(glfs); + return ret; +} + + +struct glfs_fd * +glusterBlockCreateMetaLockFile(struct glfs *glfs, char *volume) +{ + struct glfs_fd *lkfd; + int ret; + + + ret = glfs_mkdir (glfs, METADIR, 0); + if (ret && errno != EEXIST) { + LOG("gfapi", GB_LOG_ERROR, "glfs_mkdir(%s) on volume %s failed[%s]", + METADIR, volume, strerror(errno)); + goto out; + } + + ret = glfs_chdir (glfs, METADIR); + if (ret) { + LOG("gfapi", GB_LOG_ERROR, "glfs_chdir(%s) on volume %s failed[%s]", + METADIR, volume, strerror(errno)); + goto out; + } + + lkfd = glfs_creat(glfs, TXLOCKFILE, O_RDWR, S_IRUSR | S_IWUSR); + if (!lkfd) { + LOG("gfapi", GB_LOG_ERROR, "glfs_creat(%s) on volume %s failed[%s]", + TXLOCKFILE, volume, strerror(errno)); + goto out; + } + + return lkfd; + + out: + return NULL; +} + + +void +blockFreeMetaInfo(MetaInfo *info) +{ + int i; + + + if (!info) + return; + + for (i = 0; i < info->nhosts; i++) + GB_FREE(info->list[i]); + + GB_FREE(info->list); + GB_FREE(info); +} + + +static void +blockStuffMetaInfo(MetaInfo *info, char *line) +{ + char* tmp = strdup(line); + char* opt = strtok(tmp,":"); + int Flag = 0; + size_t i; + + + switch (blockMetaKeyEnumParse(opt)) { + case GB_META_VOLUME: + strcpy(info->volume, strchr(line, ' ')+1); + break; + case GB_META_GBID: + strcpy(info->gbid, strchr(line, ' ')+1); + break; + case GB_META_SIZE: + sscanf(strchr(line, ' ')+1, "%zu", &info->size); + break; + case GB_META_HA: + sscanf(strchr(line, ' ')+1, "%zu", &info->mpath); + break; + case GB_META_ENTRYCREATE: + strcpy(info->entry, strchr(line, ' ')+1); + break; + + default: + if(!info->list) { + if(GB_ALLOC(info->list) < 0) + return; + if(GB_ALLOC(info->list[0]) < 0) + return; + strcpy(info->list[0]->addr, opt); + strcpy(info->list[0]->status, strchr(line, ' ')+1); + info->nhosts = 1; + } else { + for (i = 0; i < info->nhosts; i++) { + if(!strcmp(info->list[i]->addr, opt)) { + strcpy(info->list[i]->status, strchr(line, ' ')+1); + Flag = 1; + break; + } + } + if (!Flag) { + if(GB_ALLOC(info->list[info->nhosts]) < 0) + return; + strcpy(info->list[info->nhosts]->addr, opt); + strcpy(info->list[info->nhosts]->status, strchr(line, ' ')+1); + info->nhosts++; + } + } + break; + } + + GB_FREE(tmp); +} + + +int +blockGetMetaInfo(struct glfs* glfs, char* metafile, MetaInfo *info) +{ + size_t count = 0; + struct glfs_fd *tgmfd; + char line[1024]; + char *tmp; + + + tgmfd = glfs_open(glfs, metafile, O_RDONLY); + if (!tgmfd) { + LOG("gfapi", GB_LOG_ERROR, "glfs_open(%s) on volume %s failed[%s]", + metafile, info->volume, strerror(errno)); + return -1; + } + + while (glfs_read (tgmfd, line, sizeof(line), 0) > 0) { + tmp = strtok(line,"\n"); + count += strlen(tmp) + 1; + blockStuffMetaInfo(info, tmp); + glfs_lseek(tgmfd, count, SEEK_SET); + } + + glfs_close(tgmfd); + + return 0; +} -- cgit