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mdbx: rework using of mdbx_mmap_t and mdbx_msync().

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This commit is contained in:
Leo Yuriev
2017-07-11 14:10:24 +03:00
parent 70d54f6f2c
commit 455de97d36
4 changed files with 64 additions and 101 deletions
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15
src/bits.h
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@@ -659,12 +659,13 @@ typedef struct MDBX_pgstate {
struct MDBX_env {
#define MDBX_ME_SIGNATURE UINT32_C(0x9A899641)
size_t me_signature;
mdbx_filehandle_t me_fd; /* The main data file */
mdbx_filehandle_t me_lfd; /* The lock file */
#ifdef MDBX_OSAL_SECTION
MDBX_OSAL_SECTION me_dxb_section;
MDBX_OSAL_SECTION me_lck_section;
#endif
mdbx_mmap_t me_dxb_mmap; /* The main data file */
mdbx_mmap_t me_lck_mmap; /* The lock file */
#define me_map me_dxb_mmap.dxb
#define me_lck me_lck_mmap.lck
#define me_fd me_dxb_mmap.fd
#define me_lfd me_lck_mmap.fd
/* Failed to update the meta page. Probably an I/O error. */
#define MDBX_FATAL_ERROR UINT32_C(0x80000000)
/* Some fields are initialized. */
@@ -684,8 +685,6 @@ struct MDBX_env {
mdbx_pid_t me_pid; /* process ID of this env */
mdbx_thread_key_t me_txkey; /* thread-key for readers */
char *me_path; /* path to the DB files */
char *me_map; /* the memory map of the data file */
MDBX_lockinfo *me_lck; /* the memory map of the lock file, never NULL */
void *me_pbuf; /* scratch area for DUPSORT put() */
MDBX_txn *me_txn; /* current write transaction */
MDBX_txn *me_txn0; /* prealloc'd write transaction */