android - SHM replacement based on ASHMEM -

i'm working on library port *nix android, , library uses shared memory or shm. android not have system v shm. instead uses ashmem.

is aware of shim library map shm calls ashmem? google has not been helpful.

this how worked me while working similar problem of porting:

instead of using shmfd = open(shm_path, o_rdwr) creating , getting file descriptor replaced with

int fd = ashmem_create_region("sharedregionname", size);

and used file descriptor base address:

int base_address = mmap(null, size, prot_read | prot_write, map_shared, fd, 0);

you can pass base_address java code native code using native function returns descriptor.

android has wrapper class ashmem named memoryfile. can have in that.

the following links helped me create own wrapper:

Addrety