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Message passing / mail system
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This commit is contained in:
Kamil Kowalczyk
2026-02-18 17:18:03 +01:00
parent 35454a087e
commit ae0a6024da
19 changed files with 340 additions and 66 deletions
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12
libmsl/m/system.c
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@@ -52,3 +52,15 @@ int read (const char* path, size_t off, uint8_t* buffer, size_t size) {
int describe (const char* path, struct fs_desc_buffer* desc) {
return (int)do_syscall (SYS_DESCRIBE, path, desc);
}
int mail_send (int pgid, void* mesg, size_t mesg_size) {
return (int)do_syscall (SYS_MAIL_SEND, pgid, mesg, mesg_size);
}
int mail_receive (void* mesg, size_t mesg_size) {
return (int)do_syscall (SYS_MAIL_RECEIVE, mesg, mesg_size);
}
int get_procgroup (int pid) { return (int)do_syscall (SYS_GET_PROCGROUP, pid); }
int get_exec_pid (void) { return (int)do_syscall (SYS_GET_EXEC_PID, 0); }

12
libmsl/m/system.h
View File

@@ -65,4 +65,16 @@ int read (const char* path, size_t off, uint8_t* buffer, size_t size);
/* describe a file */
int describe (const char* path, struct fs_desc_buffer* desc);
/* send a message to a procgroup's mail */
int mail_send (int pgid, void* mesg, size_t mesg_size);
/* receive a message from mail */
int mail_receive (void* mesg, size_t mesg_size);
/* get procgroup id of a perticular process */
int get_procgroup (int pid);
/* get PID of process, which exec'ed the current process */
int get_exec_pid (void);
#endif // _LIBMSL_M_SYSTEM_H