bake-bulk-server.c 13.1 KB
Newer Older
Philip Carns's avatar
Philip Carns committed
1 2 3 4 5 6 7
/*
 * (C) 2015 The University of Chicago
 * 
 * See COPYRIGHT in top-level directory.
 */

#include <assert.h>
8
#include <bake-bulk-server.h>
9
#include <libpmemobj.h>
Philip Carns's avatar
Philip Carns committed
10

Philip Carns's avatar
Philip Carns committed
11 12
#include "bake-bulk-rpc.h"

13 14 15 16 17
/* definition of internal region_id_t identifier for libpmemobj back end */
typedef struct {
    PMEMoid oid;
    uint64_t size;
} pmemobj_region_id_t;
18

Philip Carns's avatar
Philip Carns committed
19 20 21
/* TODO: this should not be global in the long run; server may provide access
 * to multiple targets
 */
22 23 24
static PMEMobjpool *g_pmem_pool = NULL;
static struct bake_bulk_root *g_pmem_root = NULL;

Philip Carns's avatar
Philip Carns committed
25

26 27
void bake_server_register(margo_instance_id mid, PMEMobjpool *bb_pmem_pool,
    struct bake_bulk_root *bb_pmem_root)
Philip Carns's avatar
Philip Carns committed
28
{
29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74
    hg_class_t *hg_class = margo_get_class(mid);
    assert(hg_class);

    /* register RPCs */
    MERCURY_REGISTER(hg_class, "bake_bulk_shutdown_rpc", void, void,
        bake_bulk_shutdown_ult_handler);
    MERCURY_REGISTER(hg_class, "bake_bulk_create_rpc", bake_bulk_create_in_t,
        bake_bulk_create_out_t,
        bake_bulk_create_ult_handler);
    MERCURY_REGISTER(hg_class, "bake_bulk_write_rpc", bake_bulk_write_in_t,
        bake_bulk_write_out_t,
        bake_bulk_write_ult_handler);
    MERCURY_REGISTER(hg_class, "bake_bulk_eager_write_rpc", bake_bulk_eager_write_in_t,
        bake_bulk_eager_write_out_t,
        bake_bulk_eager_write_ult_handler);
    MERCURY_REGISTER(hg_class, "bake_bulk_eager_read_rpc", bake_bulk_eager_read_in_t,
        bake_bulk_eager_read_out_t,
        bake_bulk_eager_read_ult_handler);
    MERCURY_REGISTER(hg_class, "bake_bulk_persist_rpc", bake_bulk_persist_in_t,
        bake_bulk_persist_out_t,
        bake_bulk_persist_ult_handler);
    MERCURY_REGISTER(hg_class, "bake_bulk_get_size_rpc", bake_bulk_get_size_in_t,
        bake_bulk_get_size_out_t,
        bake_bulk_get_size_ult_handler);
    MERCURY_REGISTER(hg_class, "bake_bulk_read_rpc", bake_bulk_read_in_t,
        bake_bulk_read_out_t,
        bake_bulk_read_ult_handler);
    MERCURY_REGISTER(hg_class, "bake_bulk_probe_rpc", void,
        bake_bulk_probe_out_t,
        bake_bulk_probe_ult_handler);
    MERCURY_REGISTER(hg_class, "bake_bulk_noop_rpc", void,
        void,
        bake_bulk_noop_ult_handler);

    /* set global pmem variables needed by the bake server */
    g_pmem_pool = bb_pmem_pool;
    g_pmem_root = bb_pmem_root;

    return;
}

/* service a remote RPC that instructs the server daemon to shut down */
static void bake_bulk_shutdown_ult(hg_handle_t handle)
{
    hg_return_t hret;
    struct hg_info *hgi;
Philip Carns's avatar
Philip Carns committed
75 76
    margo_instance_id mid;

77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191
    // printf("Got RPC request to shutdown.\n");

    hgi = HG_Get_info(handle);
    assert(hgi);
    mid = margo_hg_class_to_instance(hgi->hg_class);

    hret = margo_respond(mid, handle, NULL);
    assert(hret == HG_SUCCESS);

    HG_Destroy(handle);

    /* NOTE: we assume that the server daemon is using
     * margo_wait_for_finalize() to suspend until this RPC executes, so there
     * is no need to send any extra signal to notify it.
     */
    margo_finalize(mid);

    return;
}
DEFINE_MARGO_RPC_HANDLER(bake_bulk_shutdown_ult)

/* service a remote RPC that creates a bulk region */
static void bake_bulk_create_ult(hg_handle_t handle)
{
    bake_bulk_create_out_t out;
    bake_bulk_create_in_t in;
    hg_return_t hret;
    pmemobj_region_id_t* prid;

    /* TODO: this check needs to be somewhere else */
    assert(sizeof(pmemobj_region_id_t) <= BAKE_BULK_REGION_ID_DATA_SIZE);
    // printf("Got RPC request to create bulk region.\n");
    
    memset(&out, 0, sizeof(out));

    hret = HG_Get_input(handle, &in);
    if(hret != HG_SUCCESS)
    {
        out.ret = -1;
        HG_Respond(handle, NULL, NULL, &out);
        HG_Destroy(handle);
        return;
    }

    prid = (pmemobj_region_id_t*)out.rid.data;
    prid->size = in.region_size;
    out.ret = pmemobj_alloc(g_pmem_pool, &prid->oid, in.region_size, 0, NULL, NULL);

    HG_Free_input(handle, &in);
    HG_Respond(handle, NULL, NULL, &out);
    HG_Destroy(handle);
    return;
}
DEFINE_MARGO_RPC_HANDLER(bake_bulk_create_ult)

/* service a remote RPC that writes to a bulk region */
static void bake_bulk_write_ult(hg_handle_t handle)
{
    bake_bulk_write_out_t out;
    bake_bulk_write_in_t in;
    hg_return_t hret;
    char* buffer;
    hg_size_t size;
    hg_bulk_t bulk_handle;
    struct hg_info *hgi;
    margo_instance_id mid;
    pmemobj_region_id_t* prid;

    // printf("Got RPC request to write bulk region.\n");
    
    memset(&out, 0, sizeof(out));

    hgi = HG_Get_info(handle);
    assert(hgi);
    mid = margo_hg_class_to_instance(hgi->hg_class);

    hret = HG_Get_input(handle, &in);
    if(hret != HG_SUCCESS)
    {
        out.ret = -1;
        HG_Respond(handle, NULL, NULL, &out);
        HG_Destroy(handle);
        return;
    }

    prid = (pmemobj_region_id_t*)in.rid.data;

    /* find memory address for target object */
    buffer = pmemobj_direct(prid->oid);
    if(!buffer)
    {
        out.ret = -1;
        HG_Free_input(handle, &in);
        HG_Respond(handle, NULL, NULL, &out);
        HG_Destroy(handle);
        return;
    }

    size = HG_Bulk_get_size(in.bulk_handle);

    /* create bulk handle for local side of transfer */
    hret = HG_Bulk_create(hgi->hg_class, 1, (void**)(&buffer), &size, 
        HG_BULK_WRITE_ONLY, &bulk_handle);
    if(hret != HG_SUCCESS)
    {
        out.ret = -1;
        HG_Free_input(handle, &in);
        HG_Respond(handle, NULL, NULL, &out);
        HG_Destroy(handle);
        return;
    }

    hret = margo_bulk_transfer(mid, HG_BULK_PULL, hgi->addr, in.bulk_handle,
        0, bulk_handle, 0, size);
    if(hret != HG_SUCCESS)
Philip Carns's avatar
Philip Carns committed
192
    {
193 194 195 196 197 198
        out.ret = -1;
        HG_Bulk_free(bulk_handle);
        HG_Free_input(handle, &in);
        HG_Respond(handle, NULL, NULL, &out);
        HG_Destroy(handle);
        return;
Philip Carns's avatar
Philip Carns committed
199 200
    }

201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245
    out.ret = 0;

    HG_Bulk_free(bulk_handle);
    HG_Free_input(handle, &in);
    HG_Respond(handle, NULL, NULL, &out);
    HG_Destroy(handle);
    return;
}
DEFINE_MARGO_RPC_HANDLER(bake_bulk_write_ult)


/* service a remote RPC that writes to a bulk region in eager mode */
static void bake_bulk_eager_write_ult(hg_handle_t handle)
{
    bake_bulk_eager_write_out_t out;
    bake_bulk_eager_write_in_t in;
    hg_return_t hret;
    char* buffer;
    hg_bulk_t bulk_handle;
    struct hg_info *hgi;
    margo_instance_id mid;
    pmemobj_region_id_t* prid;

    // printf("Got RPC request to write bulk region.\n");
    
    memset(&out, 0, sizeof(out));

    hgi = HG_Get_info(handle);
    assert(hgi);
    mid = margo_hg_class_to_instance(hgi->hg_class);

    hret = HG_Get_input(handle, &in);
    if(hret != HG_SUCCESS)
    {
        out.ret = -1;
        HG_Respond(handle, NULL, NULL, &out);
        HG_Destroy(handle);
        return;
    }

    prid = (pmemobj_region_id_t*)in.rid.data;

    /* find memory address for target object */
    buffer = pmemobj_direct(prid->oid);
    if(!buffer)
246
    {
247 248 249 250 251
        out.ret = -1;
        HG_Free_input(handle, &in);
        HG_Respond(handle, NULL, NULL, &out);
        HG_Destroy(handle);
        return;
252
    }
253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274

    memcpy(buffer, in.buffer, in.size);

    out.ret = 0;

    HG_Free_input(handle, &in);
    HG_Respond(handle, NULL, NULL, &out);
    HG_Destroy(handle);
    return;
}
DEFINE_MARGO_RPC_HANDLER(bake_bulk_eager_write_ult)

/* service a remote RPC that persists to a bulk region */
static void bake_bulk_persist_ult(hg_handle_t handle)
{
    bake_bulk_persist_out_t out;
    bake_bulk_persist_in_t in;
    hg_return_t hret;
    char* buffer;
    pmemobj_region_id_t* prid;

    // printf("Got RPC request to persist bulk region.\n");
275
    
276 277 278 279
    memset(&out, 0, sizeof(out));

    hret = HG_Get_input(handle, &in);
    if(hret != HG_SUCCESS)
280
    {
281 282 283 284
        out.ret = -1;
        HG_Respond(handle, NULL, NULL, &out);
        HG_Destroy(handle);
        return;
285
    }
286

287 288 289 290 291
    prid = (pmemobj_region_id_t*)in.rid.data;

    /* find memory address for target object */
    buffer = pmemobj_direct(prid->oid);
    if(!buffer)
Philip Carns's avatar
Philip Carns committed
292
    {
293 294 295 296 297
        out.ret = -1;
        HG_Free_input(handle, &in);
        HG_Respond(handle, NULL, NULL, &out);
        HG_Destroy(handle);
        return;
Philip Carns's avatar
Philip Carns committed
298
    }
299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325

    /* TODO: should this have an abt shim in case it blocks? */
    pmemobj_persist(g_pmem_pool, buffer, prid->size);

    out.ret = 0;

    HG_Free_input(handle, &in);
    HG_Respond(handle, NULL, NULL, &out);
    HG_Destroy(handle);
    return;
}
DEFINE_MARGO_RPC_HANDLER(bake_bulk_persist_ult)

/* service a remote RPC that retrieves the size of a bulk region */
static void bake_bulk_get_size_ult(hg_handle_t handle)
{
    bake_bulk_get_size_out_t out;
    bake_bulk_get_size_in_t in;
    hg_return_t hret;
    pmemobj_region_id_t* prid;

    // printf("Got RPC request to get_size bulk region.\n");
    
    memset(&out, 0, sizeof(out));

    hret = HG_Get_input(handle, &in);
    if(hret != HG_SUCCESS)
Philip Carns's avatar
Philip Carns committed
326
    {
327 328 329 330
        out.ret = -1;
        HG_Respond(handle, NULL, NULL, &out);
        HG_Destroy(handle);
        return;
Philip Carns's avatar
Philip Carns committed
331 332
    }

333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380
    prid = (pmemobj_region_id_t*)in.rid.data;

    /* kind of cheating here; the size is encoded in the RID */
    out.size = prid->size;
    out.ret = 0;

    HG_Free_input(handle, &in);
    HG_Respond(handle, NULL, NULL, &out);
    HG_Destroy(handle);
    return;
}
DEFINE_MARGO_RPC_HANDLER(bake_bulk_get_size_ult)

/* service a remote RPC for a no-op */
static void bake_bulk_noop_ult(hg_handle_t handle)
{
    // printf("Got RPC request to noop bulk region.\n");

    HG_Respond(handle, NULL, NULL, NULL);
    HG_Destroy(handle);
    return;
}
DEFINE_MARGO_RPC_HANDLER(bake_bulk_noop_ult)

/* TODO consolidate with write handler; read and write are nearly identical */
/* service a remote RPC that reads to a bulk region */
static void bake_bulk_read_ult(hg_handle_t handle)
{
    bake_bulk_read_out_t out;
    bake_bulk_read_in_t in;
    hg_return_t hret;
    char* buffer;
    hg_size_t size;
    hg_bulk_t bulk_handle;
    struct hg_info *hgi;
    margo_instance_id mid;
    pmemobj_region_id_t* prid;

    // printf("Got RPC request to read bulk region.\n");
    
    memset(&out, 0, sizeof(out));

    hgi = HG_Get_info(handle);
    assert(hgi);
    mid = margo_hg_class_to_instance(hgi->hg_class);

    hret = HG_Get_input(handle, &in);
    if(hret != HG_SUCCESS)
Philip Carns's avatar
Philip Carns committed
381
    {
382 383 384 385
        out.ret = -1;
        HG_Respond(handle, NULL, NULL, &out);
        HG_Destroy(handle);
        return;
Philip Carns's avatar
Philip Carns committed
386 387
    }

388 389 390 391 392
    prid = (pmemobj_region_id_t*)in.rid.data;

    /* find memory address for target object */
    buffer = pmemobj_direct(prid->oid);
    if(!buffer)
Philip Carns's avatar
Philip Carns committed
393
    {
394 395 396 397 398
        out.ret = -1;
        HG_Free_input(handle, &in);
        HG_Respond(handle, NULL, NULL, &out);
        HG_Destroy(handle);
        return;
Philip Carns's avatar
Philip Carns committed
399 400
    }

401 402 403 404 405 406
    size = HG_Bulk_get_size(in.bulk_handle);

    /* create bulk handle for local side of transfer */
    hret = HG_Bulk_create(hgi->hg_class, 1, (void**)(&buffer), &size, 
        HG_BULK_READ_ONLY, &bulk_handle);
    if(hret != HG_SUCCESS)
Philip Carns's avatar
Philip Carns committed
407
    {
408 409 410 411 412
        out.ret = -1;
        HG_Free_input(handle, &in);
        HG_Respond(handle, NULL, NULL, &out);
        HG_Destroy(handle);
        return;
Philip Carns's avatar
Philip Carns committed
413
    }
414 415 416 417

    hret = margo_bulk_transfer(mid, HG_BULK_PUSH, hgi->addr, in.bulk_handle,
        0, bulk_handle, 0, size);
    if(hret != HG_SUCCESS)
Philip Carns's avatar
Philip Carns committed
418
    {
419 420 421 422 423 424
        out.ret = -1;
        HG_Bulk_free(bulk_handle);
        HG_Free_input(handle, &in);
        HG_Respond(handle, NULL, NULL, &out);
        HG_Destroy(handle);
        return;
Philip Carns's avatar
Philip Carns committed
425 426
    }

427
    out.ret = 0;
Philip Carns's avatar
Philip Carns committed
428

429 430 431 432 433 434 435
    HG_Bulk_free(bulk_handle);
    HG_Free_input(handle, &in);
    HG_Respond(handle, NULL, NULL, &out);
    HG_Destroy(handle);
    return;
}
DEFINE_MARGO_RPC_HANDLER(bake_bulk_read_ult)
Philip Carns's avatar
Philip Carns committed
436 437


438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457
/* service a remote RPC that reads to a bulk region and eagerly sends
 * response */
static void bake_bulk_eager_read_ult(hg_handle_t handle)
{
    bake_bulk_eager_read_out_t out;
    bake_bulk_eager_read_in_t in;
    hg_return_t hret;
    char* buffer;
    hg_size_t size;
    struct hg_info *hgi;
    margo_instance_id mid;
    pmemobj_region_id_t* prid;

    // printf("Got RPC request to read bulk region.\n");
    
    memset(&out, 0, sizeof(out));

    hgi = HG_Get_info(handle);
    assert(hgi);
    mid = margo_hg_class_to_instance(hgi->hg_class);
Philip Carns's avatar
Philip Carns committed
458

459 460 461 462 463 464 465 466 467 468
    hret = HG_Get_input(handle, &in);
    if(hret != HG_SUCCESS)
    {
        out.ret = -1;
        HG_Respond(handle, NULL, NULL, &out);
        HG_Destroy(handle);
        return;
    }

    prid = (pmemobj_region_id_t*)in.rid.data;
Philip Carns's avatar
Philip Carns committed
469

470 471 472 473 474 475 476 477 478 479
    /* find memory address for target object */
    buffer = pmemobj_direct(prid->oid);
    if(!buffer)
    {
        out.ret = -1;
        HG_Free_input(handle, &in);
        HG_Respond(handle, NULL, NULL, &out);
        HG_Destroy(handle);
        return;
    }
480

481 482 483 484 485 486 487 488
    out.ret = 0;
    out.buffer = buffer;
    out.size = in.size;

    HG_Free_input(handle, &in);
    HG_Respond(handle, NULL, NULL, &out);
    HG_Destroy(handle);
    return;
Philip Carns's avatar
Philip Carns committed
489
}
490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509
DEFINE_MARGO_RPC_HANDLER(bake_bulk_eager_read_ult)

/* service a remote RPC that probes for a target id */
static void bake_bulk_probe_ult(hg_handle_t handle)
{
    bake_bulk_probe_out_t out;

    // printf("Got RPC request to probe bulk region.\n");
    
    memset(&out, 0, sizeof(out));

    out.ret = 0;
    out.bti = g_pmem_root->target_id;

    HG_Respond(handle, NULL, NULL, &out);
    HG_Destroy(handle);
    return;
}
DEFINE_MARGO_RPC_HANDLER(bake_bulk_probe_ult)

Philip Carns's avatar
Philip Carns committed
510