I was believing mremap would have a realloc-like behavior until debugging things like the following lines of cod开发者_如何学Ce in C.
I have a file mmap\'d read-only/shared, with multiple threads/processes reading the data concurrently. A single writer is allowed to modify the data at any time (using a mutex in a separate shared mem
When running valgrind on the following program the assertion fails: #include <unistd.h> #include <sys/mman.h>
Just wondering if the key to shared memory is the file name or the inode. I have a file called .last, which is just a hard link to a file named YYYYMMDDHHMMSS.
I have a small example program which simply fopens a file and uses fgets to read it. Using strace, I notice that the first call to fgets runs a mmap system call, and then read system calls are used to
If you memory map a file using mmap(), but then the un开发者_如何学JAVAderlying file changes to a much smaller size. What happens if you access a memory offset that was shaved off from the file?IBM sa
can somebody please explain how does 0 influence mmap in python in this case: mmap.mmap(0 , 256, \"some tag\")
I\'ve to deal with old C- Sourcecode. After I managed to compile it, while running it I get the error message
I face the challenge of reading/writing files (in Gigs) line by line. Reading many forum entries and sites (including a bunch of SO\'s), mmap was suggested as the fastest option to read/write files.
I have a char device which enables access to an external SPI memory, and I\'d like to mmap() the external memory so that I can access it from a program as if开发者_StackOverflow it were normal memory.
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