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24 lines
633 B
Markdown
24 lines
633 B
Markdown
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## Name
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create\_shared\_buffer - create a shareable memory buffer
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## Synopsis
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```**c++
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#include <SharedBuffer.h>
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int create_shared_buffer(int size, void** buffer);
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```
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## Description
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Creates a new memory region that can be shared with other processes. The region is only accessible to the creating process by default.
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## Return value
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If a region is successfully created, `create_shared_buffer()` stores a pointer to the memory in `buffer` and returns a buffer ID. Otherwise, it returns -1 and sets `errno` to describe the error.
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## Errors
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* `EINVAL`: `size` is zero or negative.
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* `EFAULT`: `buffer` is not a valid address.
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