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Add fault injection for partial read/writes and random send() delays

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cozis
2026-01-24 11:40:45 +01:00
parent 18817203bf
commit 7306bd1203
2 changed files with 35 additions and 2 deletions
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quakey/src/quakey.c
+34 -1
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@@ -841,6 +841,8 @@ static Host *host___;
int errno___;
static uint64_t sim_random(Sim *sim);
static void abort_(char *str)
{
#ifdef _WIN32
@@ -1666,7 +1668,14 @@ static int send_inner(Desc *desc, char *src, int len)
if (ret == 0)
return HOST_ERROR_WOULDBLOCK;
time_event_send_data(desc->host->sim, desc->host->sim->current_time + 10000000, desc);
Nanos latency = 10000000;
#ifdef FAULT_INJECTION
Sim *sim = desc->host->sim;
uint64_t rng = sim_random(sim);
latency = 1000000 + (rng % 99000000); // between 1ms and 100ms
#endif
time_event_send_data(desc->host->sim, desc->host->sim->current_time + latency, desc);
return ret;
}
@@ -1676,6 +1685,12 @@ static int host_read(Host *host, int desc_idx, char *dst, int len)
return HOST_ERROR_BADIDX;
Desc *desc = &host->desc[desc_idx];
#ifdef FAULT_INJECTION
Sim *sim = desc->host->sim;
uint64_t rng = sim_random(sim);
len = 1 + (rng % len);
#endif
int num = 0;
if (desc->type == DESC_SOCKET_C) {
num = recv_inner(desc, dst, len);
@@ -1699,6 +1714,12 @@ static int host_write(Host *host, int desc_idx, char *src, int len)
return HOST_ERROR_BADIDX;
Desc *desc = &host->desc[desc_idx];
#ifdef FAULT_INJECTION
Sim *sim = desc->host->sim;
uint64_t rng = sim_random(sim);
len = 1 + (rng % len);
#endif
int num = 0;
if (desc->type == DESC_SOCKET_C) {
num = send_inner(desc, src, len);
@@ -1720,6 +1741,12 @@ static int host_recv(Host *host, int desc_idx, char *dst, int len)
return HOST_ERROR_BADIDX;
Desc *desc = &host->desc[desc_idx];
#ifdef FAULT_INJECTION
Sim *sim = desc->host->sim;
uint64_t rng = sim_random(sim);
len = 1 + (rng % len);
#endif
int num = 0;
if (desc->type == DESC_SOCKET_C) {
num = recv_inner(desc, dst, len);
@@ -1738,6 +1765,12 @@ static int host_send(Host *host, int desc_idx, char *src, int len)
return HOST_ERROR_BADIDX;
Desc *desc = &host->desc[desc_idx];
#ifdef FAULT_INJECTION
Sim *sim = desc->host->sim;
uint64_t rng = sim_random(sim);
len = 1 + (rng % len);
#endif
int num = 0;
if (desc->type == DESC_SOCKET_C) {
num = send_inner(desc, src, len);