diff options
Diffstat (limited to 'src/H5Fsuper.c')
| -rw-r--r-- | src/H5Fsuper.c | 93 |
1 files changed, 58 insertions, 35 deletions
diff --git a/src/H5Fsuper.c b/src/H5Fsuper.c index 5036a4f..6196557 100644 --- a/src/H5Fsuper.c +++ b/src/H5Fsuper.c @@ -31,6 +31,7 @@ #include "H5Fpkg.h" /* File access */ #include "H5FDprivate.h" /* File drivers */ #include "H5Iprivate.h" /* IDs */ +#include "H5MFprivate.h" /* File memory management */ #include "H5Pprivate.h" /* Property lists */ #include "H5SMprivate.h" /* Shared Object Header Messages */ @@ -186,9 +187,9 @@ H5F_locate_signature(H5FD_t *file, hid_t dxpl_id) */ for(n = 8; n < maxpow; n++) { addr = (8 == n) ? 0 : (haddr_t)1 << n; - if(H5FD_set_eoa(file, H5FD_MEM_SUPER, addr+H5F_SIGNATURE_LEN) < 0) + if(H5FD_set_eoa(file, H5FD_MEM_SUPER, addr + H5F_SIGNATURE_LEN) < 0) HGOTO_ERROR(H5E_IO, H5E_CANTINIT, HADDR_UNDEF, "unable to set EOA value for file signature") - if(H5FD_read(file, H5FD_MEM_SUPER, dxpl_id, addr, (size_t)H5F_SIGNATURE_LEN, buf) < 0) + if(H5FD_read(file, dxpl_id, H5FD_MEM_SUPER, addr, (size_t)H5F_SIGNATURE_LEN, buf) < 0) HGOTO_ERROR(H5E_IO, H5E_CANTINIT, HADDR_UNDEF, "unable to read file signature") if(!HDmemcmp(buf, H5F_SIGNATURE, (size_t)H5F_SIGNATURE_LEN)) break; @@ -235,6 +236,7 @@ H5F_super_read(H5F_t *f, hid_t dxpl_id, H5G_loc_t *root_loc) H5P_genplist_t *c_plist; /* File creation property list */ H5F_file_t *shared; /* shared part of `file' */ H5FD_t *lf; /* file driver part of `shared' */ + haddr_t abs_super_addr; /* Absolute offset of superblock in file */ haddr_t stored_eoa; /*relative end-of-addr in file */ haddr_t eof; /*end of file address */ size_t sizeof_addr; /* Size of offsets in the file (in bytes) */ @@ -256,14 +258,14 @@ H5F_super_read(H5F_t *f, hid_t dxpl_id, H5G_loc_t *root_loc) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, FAIL, "can't get property list") /* Find the superblock */ - if(HADDR_UNDEF == (shared->super_addr = H5F_locate_signature(lf, dxpl_id))) + if(HADDR_UNDEF == (abs_super_addr = H5F_locate_signature(lf, dxpl_id))) HGOTO_ERROR(H5E_FILE, H5E_NOTHDF5, FAIL, "unable to find file signature") /* Read fixed-size portion of the superblock */ p = sbuf; - if(H5FD_set_eoa(lf, H5FD_MEM_SUPER, shared->super_addr + fixed_size) < 0) + if(H5FD_set_eoa(lf, H5FD_MEM_SUPER, abs_super_addr + fixed_size) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "set end of space allocation request failed") - if(H5FD_read(lf, H5FD_MEM_SUPER, dxpl_id, shared->super_addr, fixed_size, p) < 0) + if(H5FD_read(lf, dxpl_id, H5FD_MEM_SUPER, abs_super_addr, fixed_size, p) < 0) HGOTO_ERROR(H5E_FILE, H5E_READERROR, FAIL, "unable to read superblock") /* Skip over signature (already checked when locating the superblock) */ @@ -285,9 +287,9 @@ H5F_super_read(H5F_t *f, hid_t dxpl_id, H5G_loc_t *root_loc) HDassert(fixed_size + variable_size <= sizeof(sbuf)); /* Read in variable-sized portion of superblock */ - if(H5FD_set_eoa(lf, H5FD_MEM_SUPER, shared->super_addr + fixed_size + variable_size) < 0) + if(H5FD_set_eoa(lf, H5FD_MEM_SUPER, abs_super_addr + fixed_size + variable_size) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "set end of space allocation request failed") - if(H5FD_read(lf, H5FD_MEM_SUPER, dxpl_id, shared->super_addr + fixed_size, variable_size, p) < 0) + if(H5FD_read(lf, dxpl_id, H5FD_MEM_SUPER, abs_super_addr + fixed_size, variable_size, p) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, FAIL, "unable to read superblock") /* Check for older version of superblock format */ @@ -388,17 +390,23 @@ H5F_super_read(H5F_t *f, hid_t dxpl_id, H5G_loc_t *root_loc) * Check if superblock address is different from base address and * adjust base address and "end of address" address if so. */ - if(!H5F_addr_eq(shared->super_addr, shared->base_addr)) { + if(!H5F_addr_eq(abs_super_addr, shared->base_addr)) { /* Check if the superblock moved earlier in the file */ - if(H5F_addr_lt(shared->super_addr, shared->base_addr)) - stored_eoa -= (shared->base_addr - shared->super_addr); + if(H5F_addr_lt(abs_super_addr, shared->base_addr)) + stored_eoa -= (shared->base_addr - abs_super_addr); else /* The superblock moved later in the file */ - stored_eoa += (shared->super_addr - shared->base_addr); + stored_eoa += (abs_super_addr - shared->base_addr); - shared->base_addr = shared->super_addr; + shared->base_addr = abs_super_addr; } /* end if */ + /* Set the base address for the file in the VFD now, after adjusting + * space for possible offsets of the HDF5 data in the file. + */ + if(H5FD_set_base_addr(lf, shared->base_addr) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "failed to set base address for file driver") + /* This step is for h5repart tool only. If user wants to change file driver * from family to sec2 while using h5repart, set the driver address to * undefined to let the library ignore the family driver information saved @@ -412,14 +420,13 @@ H5F_super_read(H5F_t *f, hid_t dxpl_id, H5G_loc_t *root_loc) uint8_t dbuf[H5F_MAX_DRVINFOBLOCK_SIZE]; /* Buffer for driver info block */ char drv_name[9]; /* Name of driver */ unsigned drv_vers; /* Version of driver info block */ - haddr_t drv_addr = shared->base_addr + shared->driver_addr; size_t drv_variable_size; /* Size of variable-length portion of driver info block, in bytes */ /* Read in fixed-sized portion of driver info block */ p = dbuf; - if(H5FD_set_eoa(lf, H5FD_MEM_SUPER, drv_addr + H5F_DRVINFOBLOCK_HDR_SIZE) < 0) + if(H5FD_set_eoa(lf, H5FD_MEM_SUPER, shared->driver_addr + H5F_DRVINFOBLOCK_HDR_SIZE) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "set end of space allocation request failed") - if(H5FD_read(lf, H5FD_MEM_SUPER, dxpl_id, drv_addr, (size_t)H5F_DRVINFOBLOCK_HDR_SIZE, p) < 0) + if(H5FD_read(lf, dxpl_id, H5FD_MEM_SUPER, shared->driver_addr, (size_t)H5F_DRVINFOBLOCK_HDR_SIZE, p) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, FAIL, "unable to read driver information block") /* Version number */ @@ -449,9 +456,9 @@ H5F_super_read(H5F_t *f, hid_t dxpl_id, H5G_loc_t *root_loc) HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, FAIL, "multi driver should be used") /* Read in variable-sized portion of driver info block */ - if(H5FD_set_eoa(lf, H5FD_MEM_SUPER, drv_addr + H5F_DRVINFOBLOCK_HDR_SIZE + drv_variable_size) < 0) + if(H5FD_set_eoa(lf, H5FD_MEM_SUPER, shared->driver_addr + H5F_DRVINFOBLOCK_HDR_SIZE + drv_variable_size) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "set end of space allocation request failed") - if(H5FD_read(lf, H5FD_MEM_SUPER, dxpl_id, drv_addr + H5F_DRVINFOBLOCK_HDR_SIZE, drv_variable_size, p) < 0) + if(H5FD_read(lf, dxpl_id, H5FD_MEM_SUPER, shared->driver_addr + H5F_DRVINFOBLOCK_HDR_SIZE, drv_variable_size, p) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, FAIL, "unable to read file driver information") /* Decode driver information */ @@ -512,16 +519,22 @@ H5F_super_read(H5F_t *f, hid_t dxpl_id, H5G_loc_t *root_loc) * Check if superblock address is different from base address and * adjust base address and "end of address" address if so. */ - if(!H5F_addr_eq(shared->super_addr, shared->base_addr)) { + if(!H5F_addr_eq(abs_super_addr, shared->base_addr)) { /* Check if the superblock moved earlier in the file */ - if(H5F_addr_lt(shared->super_addr, shared->base_addr)) - stored_eoa -= (shared->base_addr - shared->super_addr); + if(H5F_addr_lt(abs_super_addr, shared->base_addr)) + stored_eoa -= (shared->base_addr - abs_super_addr); else /* The superblock moved later in the file */ - stored_eoa += (shared->super_addr - shared->base_addr); + stored_eoa += (abs_super_addr - shared->base_addr); - shared->base_addr = shared->super_addr; + shared->base_addr = abs_super_addr; } /* end if */ + + /* Set the base address for the file in the VFD now, after adjusting + * space for possible offsets of the HDF5 data in the file. + */ + if(H5FD_set_base_addr(lf, shared->base_addr) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "failed to set base address for file driver") } /* end else */ /* @@ -538,7 +551,8 @@ H5F_super_read(H5F_t *f, hid_t dxpl_id, H5G_loc_t *root_loc) */ if(HADDR_UNDEF == (eof = H5FD_get_eof(lf))) HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, FAIL, "unable to determine file size") - if(eof < stored_eoa) + /* (Account for the stored EOA being absolute offset -QAK) */ + if((eof + H5F_BASE_ADDR(f)) < stored_eoa) HGOTO_ERROR(H5E_FILE, H5E_TRUNCATED, FAIL, "truncated file") /* @@ -652,9 +666,8 @@ H5F_super_init(H5F_t *f, hid_t dxpl_id) { H5P_genplist_t *plist; /* File creation property list */ hsize_t userblock_size; /* Size of userblock, in bytes */ - size_t superblock_size; /* Size of superblock, in bytes */ + hsize_t superblock_size; /* Size of superblock, in bytes */ size_t driver_size; /* Size of driver info block (bytes) */ - hsize_t alloc_size; /* Size to allocate on disk */ unsigned super_vers; /* Superblock version */ haddr_t super_addr; /* Address of superblock */ hbool_t need_ext; /* Whether the superblock extension is needed */ @@ -674,10 +687,19 @@ H5F_super_init(H5F_t *f, hid_t dxpl_id) */ if(H5P_get(plist, H5F_CRT_USER_BLOCK_NAME, &userblock_size) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTGET, FAIL, "unable to get userblock size") - f->shared->super_addr = userblock_size; - f->shared->base_addr = f->shared->super_addr; + f->shared->base_addr = userblock_size; f->shared->status_flags = 0; + /* Reserve space for the userblock */ + if(H5FD_set_eoa(f->shared->lf, H5FD_MEM_SUPER, userblock_size) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to set EOA value for userblock") + + /* Set the base address for the file in the VFD now, after allocating + * space for userblock. + */ + if(H5FD_set_base_addr(f->shared->lf, f->shared->base_addr) < 0) + HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "failed to set base address for file driver") + /* Grab superblock version from property list */ if(H5P_get(plist, H5F_CRT_SUPER_VERS_NAME, &super_vers) < 0) HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "unable to get superblock version") @@ -703,11 +725,9 @@ H5F_super_init(H5F_t *f, hid_t dxpl_id) * superblock need to be at the beginning of the file and only the first * allocation request is required to return memory at format address zero. */ - H5_CHECK_OVERFLOW(f->shared->base_addr, haddr_t, hsize_t); - alloc_size = (hsize_t)f->shared->base_addr + superblock_size; if(super_vers < HDF5_SUPERBLOCK_VERSION_2) - alloc_size += driver_size; - super_addr = H5FD_alloc(f->shared->lf, H5FD_MEM_SUPER, dxpl_id, alloc_size); + superblock_size += driver_size; + super_addr = H5MF_alloc(f, H5FD_MEM_SUPER, dxpl_id, superblock_size); if(HADDR_UNDEF == super_addr) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to allocate file space for userblock and/or superblock") if(0 != super_addr) @@ -836,6 +856,7 @@ H5F_super_write(H5F_t *f, hid_t dxpl_id) H5P_genplist_t *plist; /* File creation property list */ uint8_t buf[H5F_MAX_SUPERBLOCK_SIZE + H5F_MAX_DRVINFOBLOCK_SIZE]; /* Superblock & driver info blockencoding buffer */ uint8_t *p; /* Ptr into encoding buffer */ + haddr_t rel_eoa; /* Relative EOA for file */ size_t superblock_size; /* Size of superblock, in bytes */ size_t driver_size; /* Size of driver info block (bytes)*/ unsigned super_vers; /* Superblock version */ @@ -886,7 +907,8 @@ H5F_super_write(H5F_t *f, hid_t dxpl_id) H5F_addr_encode(f, &p, f->shared->base_addr); H5F_addr_encode(f, &p, f->shared->extension_addr); - H5F_addr_encode(f, &p, H5FD_get_eoa(f->shared->lf, H5FD_MEM_SUPER)); + rel_eoa = H5FD_get_eoa(f->shared->lf, H5FD_MEM_SUPER); + H5F_addr_encode(f, &p, (rel_eoa + f->shared->base_addr)); H5F_addr_encode(f, &p, f->shared->driver_addr); if(H5G_obj_ent_encode(f, &p, H5G_oloc(f->shared->root_grp)) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTINIT, FAIL, "unable to encode root group information") @@ -932,7 +954,8 @@ H5F_super_write(H5F_t *f, hid_t dxpl_id) /* Base, superblock extension & end of file addresses */ H5F_addr_encode(f, &p, f->shared->base_addr); H5F_addr_encode(f, &p, f->shared->extension_addr); - H5F_addr_encode(f, &p, H5FD_get_eoa(f->shared->lf, H5FD_MEM_SUPER)); + rel_eoa = H5FD_get_eoa(f->shared->lf, H5FD_MEM_SUPER); + H5F_addr_encode(f, &p, (rel_eoa + f->shared->base_addr)); /* Retrieve information for root group */ if(NULL == (root_oloc = H5G_oloc(f->shared->root_grp))) @@ -957,8 +980,8 @@ H5F_super_write(H5F_t *f, hid_t dxpl_id) /* Double check we didn't overrun the block (unlikely) */ HDassert(superblock_size <= sizeof(buf)); - /* Write superblock */ - if(H5FD_write(f->shared->lf, H5FD_MEM_SUPER, dxpl_id, f->shared->super_addr, superblock_size, buf) < 0) + /* Write superblock (always at relative offset 0) */ + if(H5FD_write(f->shared->lf, dxpl_id, H5FD_MEM_SUPER, (haddr_t)0, superblock_size, buf) < 0) HGOTO_ERROR(H5E_IO, H5E_WRITEERROR, FAIL, "unable to write superblock") done: |