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[Mammoth] Add Channel object for simple IPC messages

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This commit is contained in:
Drew Galbraith 2023-06-07 09:37:16 -07:00
parent 65439c163a
commit 40b21d9c75
8 changed files with 116 additions and 30 deletions
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21
lib/mammoth/src/process.cpp
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@ -1,9 +1,10 @@
#include "include/mammoth/process.h"
#include "mammoth/process.h"
#include <zcall.h>
#include <zerrors.h>
#include "include/mammoth/debug.h"
#include "mammoth/channel.h"
#include "mammoth/debug.h"
namespace {
@ -83,16 +84,15 @@ uint64_t LoadElfProgram(uint64_t base, uint64_t as_cap) {
} // namespace
uint64_t SpawnProcessFromElfRegion(uint64_t program) {
dbgln("Channel Create");
uint64_t local_chan;
uint64_t foreign_chan;
check(ZChannelCreate(&local_chan, &foreign_chan));
Channel local, foreign;
check(CreateChannels(local, foreign));
dbgln("Spawn");
uint64_t proc_cap;
uint64_t as_cap;
check(ZProcessSpawn(Z_INIT_PROC_SELF, foreign_chan, &proc_cap, &as_cap,
&foreign_chan));
uint64_t foreign_chan_id;
check(ZProcessSpawn(Z_INIT_PROC_SELF, foreign.release_cap(), &proc_cap,
&as_cap, &foreign_chan_id));
uint64_t entry_point = LoadElfProgram(program, as_cap);
dbgln("Thread Create");
@ -100,10 +100,9 @@ uint64_t SpawnProcessFromElfRegion(uint64_t program) {
check(ZThreadCreate(proc_cap, &thread_cap));
dbgln("Thread start");
check(ZThreadStart(thread_cap, entry_point, foreign_chan, 0));
check(ZThreadStart(thread_cap, entry_point, foreign_chan_id, 0));
const uint8_t* msg = reinterpret_cast<const uint8_t*>("Hello!");
check(ZChannelSend(local_chan, 0, 7, msg, 0, 0));
local.WriteStr("Hello!");
return Z_OK;
}