The Linux Programming Interface: a linux and unix system Programming Handbook
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The Linux Programming Interface
49
MEMORY MAPPINGS
1017
49.1
Overview ............................................................................................................... 1017
49.2
Creating a Mapping:
mmap()
................................................................................... 1020
49.3
Unmapping a Mapped Region:
munmap()
................................................................. 1023
49.4
File Mappings......................................................................................................... 1024
49.4.1
Private File Mappings.......................................................................... 1024
49.4.2
Shared File Mappings ......................................................................... 1025
49.4.3
Boundary Cases ................................................................................. 1029
49.4.4
Memory Protection and File Access Mode Interactions............................. 1030
49.5
Synchronizing a Mapped Region:
msync()
................................................................. 1031
49.6
Additional
mmap()
Flags.......................................................................................... 1033
49.7
Anonymous Mappings ............................................................................................. 1034
49.8
Remapping a Mapped Region:
mremap()
................................................................... 1037
49.9
MAP_NORESERVE
and Swap Space Overcommitting ........................................................ 1038
49.10 The MAP_FIXED Flag .................................................................................................. 1040
49.11 Nonlinear Mappings:
remap_file_pages()
................................................................... 1041
49.12 Summary................................................................................................................ 1043
49.13 Exercises ................................................................................................................ 1044
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