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hg-ctest-util.c
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hg-ctest-util.c
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/*
* Copyright 2015-2016 Argonne National Laboratory, Department of Energy,
* UChicago Argonne, LLC and the HDF Group. See COPYING in the top-level
* directory
*/
#include "hg-ctest-util.h"
#include <assert.h>
/* generic server mercury setup */
static struct hg_comm_info hserv;
char const * const ADDR_FNAME = "ctest-server-addr.tmp";
void hg_init(
char const *info_str,
size_t buf_sz,
hg_bool_t listen,
int checkin_count,
struct hg_comm_info *h)
{
hg_size_t hsz;
hg_return_t hret;
h->buf = calloc(buf_sz, 1);
assert(h->buf);
h->buf_sz = buf_sz;
h->is_separate_servers = 0;
h->hgcl = HG_Init(info_str, listen);
assert(h->hgcl != NULL);
h->hgctx = HG_Context_create(h->hgcl);
assert(h->hgctx != NULL);
h->class = HG_Class_get_name(h->hgcl);
assert(h->class != NULL);
h->transport = HG_Class_get_protocol(h->hgcl);
assert(h->transport != NULL);
/* initialize the checkin state */
h->num_to_check_in = checkin_count;
h->num_checked_in = 0;
h->checkin_handles = malloc(checkin_count * sizeof(h->checkin_handles));
for (int i = 0; i < checkin_count; i++)
h->checkin_handles[i] = HG_HANDLE_NULL;
h->check_in_id = MERCURY_REGISTER(h->hgcl, "check_in",
void, void, check_in);
h->get_bulk_handle_rpc_id = MERCURY_REGISTER(h->hgcl, "get_bulk_handle",
void, get_bulk_handle_out_t, get_bulk_handle);
h->shutdown_server_rpc_id = MERCURY_REGISTER(h->hgcl, "shutdown_server",
void, void, shutdown_server);
h->noop_rpc_id = MERCURY_REGISTER(h->hgcl, "noop",
void, void, noop);
h->bulk_read_rpc_id = MERCURY_REGISTER(h->hgcl, "bulk_read",
bulk_read_in_t, void, bulk_read);
hret = HG_Addr_self(h->hgcl, &h->self);
assert(hret == HG_SUCCESS);
hsz = buf_sz;
hret = HG_Bulk_create(h->hgcl, 1, &h->buf, &hsz, HG_BULK_READWRITE,
&h->bh);
assert(hret == HG_SUCCESS);
}
void hg_fini(struct hg_comm_info *h)
{
free(h->buf);
free(h->checkin_handles);
hg_return_t hret;
hret = HG_Bulk_free(h->bh); assert(hret == HG_SUCCESS);
hret = HG_Context_destroy(h->hgctx); assert(hret == HG_SUCCESS);
hret = HG_Addr_free(h->hgcl, h->self); assert(hret == HG_SUCCESS);
hret = HG_Finalize(h->hgcl); assert(hret == HG_SUCCESS);
}
hg_return_t check_in(hg_handle_t handle)
{
assert(hserv.num_checked_in < hserv.num_to_check_in);
hserv.checkin_handles[hserv.num_checked_in] = handle;
hserv.num_checked_in++;
dprintf("server recv checkin %d of %d\n", hserv.num_checked_in,
hserv.num_to_check_in);
if (hserv.num_checked_in == hserv.num_to_check_in) {
hg_return_t hret_end = HG_SUCCESS;
for (int i = 0; i < hserv.num_to_check_in; i++) {
dprintf("server responding to %d\n", i);
hg_return_t hret =
HG_Respond(hserv.checkin_handles[i], NULL, NULL, NULL);
if (hret != HG_SUCCESS) hret_end = hret;
}
for (int i = 0; i < hserv.num_to_check_in; i++)
HG_Destroy(hserv.checkin_handles[i]);
hserv.num_checked_in = 0;
dprintf("server done issuing responds, returning\n");
return hret_end;
}
else
return HG_SUCCESS;
}
hg_return_t noop(hg_handle_t handle)
{
hg_return_t hret = HG_Respond(handle, NULL, NULL, NULL);
assert(hret == HG_SUCCESS);
HG_Destroy(handle);
return hret;
}
hg_return_t get_bulk_handle(hg_handle_t handle)
{
hg_return_t hret;
get_bulk_handle_out_t out;
out.bh = hserv.bh;
hret = HG_Respond(handle, NULL, NULL, &out);
assert(hret == HG_SUCCESS);
HG_Destroy(handle);
return hret;
}
static int do_shutdown = 0;
hg_return_t shutdown_server(hg_handle_t handle)
{
hg_return_t hret;
hret = HG_Respond(handle, NULL, NULL, NULL);
HG_Destroy(handle);
printf("server received shutdown request\n");
do_shutdown = 1;
return hret;
}
static hg_return_t bulk_read_continuation(
const struct hg_cb_info *callback_info)
{
hg_handle_t h = callback_info->arg;
hg_return_t hret = HG_Respond(h, NULL, NULL, NULL);
return hret;
}
hg_return_t bulk_read(hg_handle_t handle)
{
// get bulk handle to read from
hg_return_t hret;
bulk_read_in_t in;
hret = HG_Get_input(handle, &in);
assert(hret == HG_SUCCESS);
hg_size_t in_buf_sz = HG_Bulk_get_size(in.bh);
struct hg_info *info = HG_Get_info(handle);
// create bulk handle to write to local buffer
hg_bulk_t wrbulk = HG_BULK_NULL;
hg_size_t buf_sz = hserv.buf_sz;
hret = HG_Bulk_create(hserv.hgcl, 1,
&hserv.buf, &buf_sz, HG_BULK_WRITE_ONLY, &wrbulk);
assert(hret == HG_SUCCESS);
// perform the bulk transfer
assert(hret == HG_SUCCESS);
hret = HG_Bulk_transfer(hserv.hgctx, bulk_read_continuation,
handle, HG_BULK_PULL, info->addr, in.bh, 0, wrbulk, 0,
in_buf_sz > buf_sz ? buf_sz : in_buf_sz, HG_OP_ID_IGNORE);
assert(hret == HG_SUCCESS);
HG_Bulk_free(wrbulk);
HG_Free_input(handle, &in);
HG_Destroy(handle);
return HG_SUCCESS;
}
void run_server(
size_t rdma_size,
char const * listen_addr,
char const * id_str,
int num_checkins)
{
hg_return_t hret;
unsigned int num_cb;
FILE *f;
char * nm;
hg_size_t nm_len = 256;
char * fname;
if (id_str) {
fname = malloc(strlen(id_str)+strlen(ADDR_FNAME)+2);
assert(fname);
sprintf(fname, "%s-%s", ADDR_FNAME, id_str);
}
else
fname = strdup(ADDR_FNAME);
hg_init(listen_addr, rdma_size, HG_TRUE, num_checkins, &hserv);
/* print out server addr to file */
f = fopen(fname, "w");
assert(f);
nm = malloc(nm_len);
assert(nm);
hret = HG_Addr_to_string(hserv.hgcl, nm, &nm_len, hserv.self);
assert(hret == HG_SUCCESS);
fprintf(f, "%s\n", nm);
fclose(f);
free(nm);
free(fname);
/* unclear whether this is the correct processing loop or not for single
* threaded */
do {
do {
hret = HG_Trigger(hserv.hgctx, 0, 1, &num_cb);
} while(hret == HG_SUCCESS && num_cb == 1);
hret = HG_Progress(hserv.hgctx, 1000);
} while((hret == HG_SUCCESS || hret == HG_TIMEOUT) && !do_shutdown);
hg_fini(&hserv);
}
hg_bulk_t dup_hg_bulk(hg_class_t *cl, hg_bulk_t in)
{
hg_bulk_t rtn;
hg_size_t sz;
hg_return_t hret;
void * buf;
sz = HG_Bulk_get_serialize_size(in, HG_FALSE);
buf = malloc(sz);
if (!buf)
return HG_BULK_NULL;
hret = HG_Bulk_serialize(buf, sz, HG_FALSE, in);
if (hret != HG_SUCCESS)
return HG_BULK_NULL;
hret = HG_Bulk_deserialize(cl, &rtn, buf, sz);
free(buf);
if (hret != HG_SUCCESS)
return HG_BULK_NULL;
else
return rtn;
}
typedef struct serv_addr_out
{
hg_addr_t addr;
int set;
} serv_addr_out_t;
// helper for lookup_serv_addr
static hg_return_t lookup_serv_addr_cb(const struct hg_cb_info *info)
{
serv_addr_out_t *out = info->arg;
out->addr = info->info.lookup.addr;
out->set = 1;
return HG_SUCCESS;
}
hg_addr_t lookup_serv_addr(struct hg_comm_info *hg, const char *info_str)
{
serv_addr_out_t out;
hg_return_t hret;
out.addr = HG_ADDR_NULL;
out.set = 0;
hret = HG_Addr_lookup(hg->hgctx, &lookup_serv_addr_cb, &out, info_str,
HG_OP_ID_IGNORE);
assert(hret == HG_SUCCESS);
// run the progress loop until we've got the output
do {
unsigned int count = 0;
do {
hret = HG_Trigger(hg->hgctx, 0, 1, &count);
} while (hret == HG_SUCCESS && count > 0);
if (out.set != 0) break;
hret = HG_Progress(hg->hgctx, 5000);
} while(hret == HG_SUCCESS || hret == HG_TIMEOUT);
return out.addr;
}