4 Commits

Author	SHA1	Message	Date
Dave Wysochanski	a0b1b1872e	Change default errno value to 0 (no error) and add prototypes in lvm.h ... Since we are using errno values, we should use '0' as a default value which indicates a non-error, rather than defining some made-up default value that is not defined in errno. If we need to deviate from errno values, this will most likely indicate a flaw in our design. Add prototypes for lvm_errno and lvm_errmsg inside lvm.h and provide a basic description of their function. This fixes a couple compile warnings. Author: Dave Wysochanski <dwysocha@redhat.com>	2009-07-16 03:07:45 +00:00
Dave Wysochanski	930a1434ac	Add lvm_vg_* APIs to create and modify VGs. ... Add some liblvm APIs for VGs. Most of these APIs simply call into the internal liblvm library. Ideally we should call the liblvm functions directly from the tools. However, until we convert more of the code to liblvm functions, things like the cmd_context will get in the way. For now just implement the liblvm functions as wrappers around the internal functions, with a little error checking and return code handling. We put all these vg APIs into a new file, lvm_vg.c The following APIs are implemented: lvm_vg_create, lvm_vg_extend, lvm_vg_set_extent_size, lvm_vg_write, lvm_vg_remove, lvm_vg_close. Still TODO: - cleanup error handling by using lvm_errno() and related APIs - cleanup naming / clarify which functions commit to disk vs not - implement more 'set' functions - decide on 'set' / 'change' nomenclature Signed-off-by: Dave Wysochanski <dwysocha@redhat.com> Acked-by: Alasdair G Kergon <agk@redhat.com>	2009-07-14 03:02:14 +00:00
Dave Wysochanski	39d6ccdfc7	Define handles to liblvm objects for pv, vg, lv, lvseg, pvseg. ... Define the 5 main liblvm objects to be the pv, vg, lv, lvseg, and pvseg. We need handles defined to all these objects in order for liblvm to be equivalent to the reporting commands pvs, vgs, and lvs. - move vg_t, lv_t, and pv_t from metadata-exported.h into lvm.h - move lv_segment and pv_segment forward declarations into lvm.h - add lvseg_t and pvseg_t to lvm.h NOTE: We currently have an inconsistency in handle definitions. lvm_t is defined as a pointer, while these other handles are just structures. We should pick one scheme and be consistent - perhaps define all handles as pointers (this is what I've seen elsewhere). Signed-off-by: Dave Wysochanski <dwysocha@redhat.com> Acked-by: Alasdair G Kergon <agk@redhat.com>	2009-07-14 03:00:30 +00:00
Dave Wysochanski	227301e041	Move lvm.h from lib to liblvm.	2009-03-06 22:49:48 +00:00