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cozis
2025-11-08 22:16:55 +01:00
parent e5039d1774
commit c2cb833e50
8 changed files with 256 additions and 268 deletions
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src/system.c
+17 -23
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@@ -166,7 +166,9 @@ static int num_processes = 0;
static Process *processes[MAX_PROCESSES];
static Process *current_process = NULL;
static uint64_t current_time = 1;
static uint64_t seed;
// TODO: use current_time instead of these fields
#ifndef _WIN32
// Simulated time for deterministic clock_gettime behavior
static struct timespec simulated_time = {0, 0};
@@ -260,12 +262,26 @@ static bool is_space(char c)
return c == ' ' || c == '\t' || c == '\r' || c == '\n';
}
void startup_simulation(void)
void startup_simulation(uint64_t seed_)
{
seed = seed_;
if (seed == 0)
seed = 1;
num_processes = 0;
current_process = NULL;
}
uint64_t simulation_random_number(void)
{
uint64_t x = seed;
x ^= x << 13;
x ^= x >> 7;
x ^= x << 17;
seed = x;
return x;
}
int spawn_simulated_process(char *args)
{
if (num_processes == MAX_PROCESSES)
@@ -332,15 +348,12 @@ int spawn_simulated_process(char *args)
switch (process->type) {
case PROCESS_TYPE_METADATA_SERVER:
printf("metadata_server_init\n");
num_polled = metadata_server_init(&process->metadata_server, argc, argv, contexts, polled, &timeout);
break;
case PROCESS_TYPE_CHUNK_SERVER:
printf("chunk_server_init\n");
num_polled = chunk_server_init(&process->chunk_server, argc, argv, contexts, polled, &timeout);
break;
case PROCESS_TYPE_CLIENT:
printf("simulation_client_init\n");
num_polled = simulation_client_init(&process->simulation_client, argc, argv, contexts, polled, &timeout);
break;
default:
@@ -658,7 +671,6 @@ void update_simulation(void)
int timeout = -1;
switch (current_process->type) {
case PROCESS_TYPE_METADATA_SERVER:
printf("metadata_server_step\n");
num_polled = metadata_server_step(
&current_process->metadata_server,
contexts,
@@ -668,7 +680,6 @@ void update_simulation(void)
);
break;
case PROCESS_TYPE_CHUNK_SERVER:
printf("chunk_server_step\n");
num_polled = chunk_server_step(
&current_process->chunk_server,
contexts,
@@ -678,7 +689,6 @@ void update_simulation(void)
);
break;
case PROCESS_TYPE_CLIENT:
//printf("simulation_client_step\n");
num_polled = simulation_client_step(
&current_process->simulation_client,
contexts,
@@ -720,21 +730,8 @@ void update_simulation(void)
case CONNECTION_DELAYED:
{
switch (desc->connect_address.type) {
char ip_str[INET_ADDRSTRLEN];
case DESC_ADDR_IPV4:
inet_ntop(AF_INET, &desc->connect_address.ipv4.sin_addr, ip_str, sizeof(ip_str));
printf("Resolving connect %s:%d\n", ip_str, ntohs(desc->connect_address.ipv4.sin_port));
break;
case DESC_ADDR_IPV6:
inet_ntop(AF_INET6, &desc->connect_address.ipv6.sin6_addr, ip_str, sizeof(ip_str));
printf("Resolving connect %s:%d\n", ip_str, ntohs(desc->connect_address.ipv6.sin6_port));
break;
}
DescriptorHandle peer_handle;
if (!find_peer_by_address(desc->connect_address, &peer_handle)) {
printf("connect failed (line %d)\n", __LINE__); // TODO
desc->revents |= POLLOUT;
desc->connection_state = CONNECTION_FAILED;
desc->connect_errno = EHOSTUNREACH; // TODO: This only works on Linux, not Windows
@@ -744,15 +741,12 @@ void update_simulation(void)
DescriptorHandle self_handle = { processes[i], j, desc->generation };
if (!accept_queue_push(&peer->accept_queue, self_handle)) {
printf("connect failed (line %d)\n", __LINE__); // TODO
desc->revents |= POLLOUT;
desc->connection_state = CONNECTION_FAILED;
desc->connect_errno = ECONNREFUSED; // TODO: This only works on Linux, not Windows
break;
}
printf("connect succeded\n"); // TODO
peer->revents |= POLLIN;
desc->connection_state = CONNECTION_QUEUED;