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* libgfapi: adding 'follow' flag to glfs_h_lookupat()Jiffin Tony Thottan2015-08-251-18/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch is backport of http://review.gluster.org/#/c/11883/ Previously glfs_h_lookupat won't follow the symlink, this patch introduces new flag `follow` which will resolve the same. Applications linking against the new library will need to use the new glfs_h_lookupat API call. In order to stay compatible with existing binaries that use the previous glfs_h_lookupat() function, the old symbol needs to stay available. Verification that there are two versions of glfs_h_lookupat: $ objdump -T /usr/lib64/libgfapi.so.0 | grep -w glfs_h_lookupat 0000000000015070 g DF .text 000000000000021e GFAPI_3.7.4 glfs_h_lookupat 0000000000015290 g DF .text 0000000000000008 (GFAPI_3.4.2) glfs_h_lookupat Testing with a binary (based on anonymous_fd_read_write.c from ./tests/) that was linked against the old library: $ objdump -T ./lookupat | grep -w glfs_h_lookupat 0000000000000000 DF *UND* 0000000000000000 GFAPI_3.4.2 glfs_h_lookupat Enable debugging for 'ld.so' so that we can check that the GFAPI_3.4.2 version of the symbol gets loaded: $ export LD_DEBUG_OUTPUT=lookupat.ld.log LD_DEBUG=all $ ./lookupat $ grep -w glfs_h_lookupat lookupat.ld.log.2543 2543: symbol=glfs_h_lookupat; lookup in file=./lookupat [0] 2543: symbol=glfs_h_lookupat; lookup in file=/lib64/libgfapi.so.0 [0] 2543: binding file ./lookupat [0] to /lib64/libgfapi.so.0 [0]: normal symbol `glfs_h_lookupat' [GFAPI_3.4.2] This change has been successfully cherry-picked as 1ead86a8bcbfe4045729466e4b98f765f3c13c8d in master Upstream reference >Change-Id: I8bf9b1c19a0585f681bc1a7f84aad1ccd0f75f6a >BUG: 1252410 >Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com> >Signed-off-by: Niels de Vos <ndevos@redhat.com> >Reviewed-on: http://review.gluster.org/11883 >Reviewed-by: soumya k <skoduri@redhat.com> >Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com> >Tested-by: NetBSD Build System <jenkins@build.gluster.org> Signed-off-by: Jiffin Tony Thottan <jthottan@redhat.com> Change-Id: Idbbf0cd6802f86c53b16377d90d08ff6d99e7b08 BUG: 1256616 Reviewed-on: http://review.gluster.org/12009 Tested-by: NetBSD Build System <jenkins@build.gluster.org> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Kaleb KEITHLEY <kkeithle@redhat.com>
* fixed a few misspellings. no code changes presentarvindch2014-03-171-4/+4
| | | | | | | | | Change-Id: Ia1a771301e9f1becbbffd8afd7eb68bec9696ef8 BUG: 1075417 Signed-off-by: arvindch <achembarpu@gmail.com> Reviewed-on: http://review.gluster.org/7283 Reviewed-by: Justin Clift <justin@gluster.org> Tested-by: Anand Avati <avati@redhat.com>
* libgfapi: fixing tabs in glfsxmp.c with whitespaceLalatendu Mohanty2013-10-271-1450/+1450
| | | | | | | | | | | | | Just replacing tabs with whitespace. No code changes present in this patch Change-Id: Ic3f64f5a52b0ab5e5c9fe9f45113901dec751e68 Signed-off-by: Lalatendu Mohanty <lmohanty@redhat.com> Reviewed-on: http://review.gluster.org/6148 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com> Reviewed-by: Santosh Pradhan <spradhan@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* libgfapi: Fix to compilation failure/warnings for examples/glfsxmp.cLalatendu Mohanty2013-10-161-17/+14
| | | | | | | | | | | | | | | | | | | | | The comilation of glfsxmp.c i.e. "make glfsxmp" was failing with "undefined reference to `clock_gettime'" error. Fixed all compilation warnings for unused variables and wrong formart specifier in printf e.g. : "format ‘%d’ expects argument of type ‘int’, but argument 3 has type ‘__syscall_slong_t’ [-Wformat]" Also added the compilation steps for glfsxmp.c in the README file Change-Id: I399ec7c9ad7b6412463c89099d63922caef6749e Signed-off-by: Lalatendu Mohanty <lmohanty@redhat.com> Reviewed-on: http://review.gluster.org/6085 Reviewed-by: Shyamsundar Ranganathan <srangana@redhat.com> Reviewed-by: Santosh Pradhan <spradhan@redhat.com> Tested-by: Shyamsundar Ranganathan <srangana@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* gfapi: object handle based API extensionsR.Shyamsundar2013-10-111-5/+1359
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is an ongoing effort to integrate NFS Ganesha ( https://github.com/nfs-ganesha/nfs-ganesha/wiki ) with GlusterFS as one of the file system back ends. Towards this we need extensions to gfapi that can handle object based operations. Meaning, instead of using full paths or relative paths from cwd, it is required that we can work with APIs, like the *at POSIX variants, to be able to create, lookup, open etc. files and directories. Hence the objects are the files or directories themselves and we give out handles to these objects that can be used for further operations. This code drop is an initial implementation of the proposed APIs. The new APIs are implemented as glfs_h_XXX variants in the file glfs-handleops.c to mirror glfs-fops.c style. The code leverages holding onto inode references and doling these out as opaque/cookie type objects to the callers, to enable them to be used as handles in other operations. An fd based approach was considered, but due to the extra footprint that the fd structure and its counterparts would incur, this was dropped to take the approach of holding inode references themselves. Tested by extending glfsxmp.c to invoke and exercise the added APIs, and further tested with a reference integration of the same as an FSAL with NFS Ganesha. Change-Id: I23629c99e905b54070fa2e6565147812e5f3fa5d BUG: 1016000 Signed-off-by: R.Shyamsundar <srangana@redhat.com> Reviewed-on: http://review.gluster.org/5936 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
* gfapi: support for chdir() and familyAnand Avati2013-04-191-2/+79
| | | | | | | | | | | | Add support for chdir, fchdir, getcwd, realpath equivalents in GFAPI. These are required for the Samba VFS plugin. Change-Id: I91d2db9146994403c98961c489c7640c51d5add2 BUG: 953694 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/4853 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* libgfapi: "tcp" is documented as the valid transport type instead of "socket".Avra Sengupta2012-11-281-2/+2
| | | | | | | | | Change-Id: I066e9be7755a535f385c102cdd1822adeda7f319 BUG: 860203 Signed-off-by: Avra Sengupta <asengupt@redhat.com> Reviewed-on: http://review.gluster.org/4226 Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com>
* api/examples: updated examples to use new callsAnand Avati2012-11-051-0/+87
| | | | | | | | | | Change-Id: I865d0c52de268b27bbdb8786d3f4af5ef3ce3d9a BUG: 839950 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/4023 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
* glfsxmp extensionAnand Avati2012-08-021-5/+31
| | | | | | | | | Change-Id: I3859621637025e464bc83d748bae7dff9808643f BUG: 839950 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.com/3735 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com>
* glfsxmp: libgfapi based exampleAnand Avati2012-07-181-0/+57
This is an example application which uses libgfapi. It is a complete autotools based build system which demonstrates the required changes in configure.ac, Makefile.am etc to successfuly detect for and build an application against libgfapi. There are two approaches to building a libgfapi based application: 1. In the presence of pkg-config in your build system. This is the recommended approach which is also used in this example. For this approach to work, you need to build glusterfs by passing --pkgconfigdir=/usr/lib64/pkgconfig (or the appropriate directory) in your distro. This already happens if you build RPMs with the glusterfs.spec provided in glusterfs.git. You will also need to install glusterfs-api RPM. 2. In the absence of pkg-config in your build system. Make sure your LDFLAGS includes -L/path/to/lib where libgfapi.so is installed and -I/path/to/include/glusterfs where the 'api' directory Change-Id: Ic4eab2df002d7e8d20593a03e643859423048848 BUG: 839950 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.com/3666 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amarts@redhat.com>
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