Call¶
Call() with no timeout: blocks until the server replies.
Library helper
Implemented in zuzu.h on top of the syscalls; it has no syscall number of its own.
SvcResult Call(Handle port, uint32_t xlen, Handle grant_handle);
Parameters¶
| Name | Direction | Description |
|---|---|---|
port |
in | Port handle with PERM_SEND. |
xlen |
in | Request length in bytes, at most MSG_BUF_SIZE. |
grant_handle |
in | Handle (with PERM_TXFR) to copy to the server, or -1. |
Returns¶
As CallTimeout().