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History of mptest/config02.test

Refactoring the mmap interface. The controlling pragma is now "mmap_size" instead of "mmap_limit". Also change SQLITE_CONFIG_MMAP_LIMIT and SQLITE_FCNTL_MMAP_LIMIT to SQLITE_CONFIG_MMAP_SIZE and SQLITE_FCNTL_MMAP_SIZE, respecctively. The default mmap_size is now always 0, meaning that memory mapped I/O is off by default. There is a new compile-time option SQLITE_MAX_MMAP_SIZE that determines a hard upper bound on the mmap_size. Setting SQLITE_MAX_MMAP_SIZE to zero disables the memory-mapped I/O logic and causes it to be omitted from the build. An extra argument is added to SQLITE_CONFIG_MMAP_SIZE that can optionally lower the SQLITE_MAX_MMAP_SIZE at start-time. The SQLITE_MAX_MMAP_SIZE is zero for platforms where we know that it does not work, meaning that it cannot be turned on by mistake on those platforms. file: [4415dfe3] check-in: [ea1404a1] user: drh branch: trunk, size: 2657
Check in the instrumented code for the mptest test case that appears to show a spontaneously disappearing journal file. file: [ea934966] check-in: [96f04d99] user: dan branch: missing-journal-file, size: 2605
Still more tests using mptester. Added test cases that leave rollback journals that must be recovered by other threads. file: [962913ed] check-in: [437b674f] user: drh branch: trunk, size: 2616
Adding tests to the mptester scripts. file: [baaee6bb] check-in: [e121adce] user: drh branch: trunk, size: 2441
Merge the multi-process tester into trunk. file: [381ec0ac] check-in: [ea53c45d] user: drh branch: trunk, size: 2288 Added