diff options
author | 2016-05-18 13:18:31 +0300 | |
---|---|---|
committer | 2016-05-18 13:42:15 +0300 | |
commit | 437fd90c0250dee670290f9b714253671a990160 (patch) | |
tree | b871786c360704244a07411c69fb58da9ead4a06 /qemu/backends/rng-egd.c | |
parent | 5bbd6fe9b8bab2a93e548c5a53b032d1939eec05 (diff) |
These changes are the raw update to qemu-2.6.
Collission happened in the following patches:
migration: do cleanup operation after completion(738df5b9)
Bug fix.(1750c932f86)
kvmclock: add a new function to update env->tsc.(b52baab2)
The code provided by the patches was already in the upstreamed
version.
Change-Id: I3cc11841a6a76ae20887b2e245710199e1ea7f9a
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'qemu/backends/rng-egd.c')
-rw-r--r-- | qemu/backends/rng-egd.c | 74 |
1 files changed, 9 insertions, 65 deletions
diff --git a/qemu/backends/rng-egd.c b/qemu/backends/rng-egd.c index 6c1340963..7a1b9242d 100644 --- a/qemu/backends/rng-egd.c +++ b/qemu/backends/rng-egd.c @@ -10,8 +10,10 @@ * See the COPYING file in the top-level directory. */ +#include "qemu/osdep.h" #include "sysemu/rng.h" #include "sysemu/char.h" +#include "qapi/error.h" #include "qapi/qmp/qerror.h" #include "hw/qdev.h" /* just for DEFINE_PROP_CHR */ @@ -24,33 +26,12 @@ typedef struct RngEgd CharDriverState *chr; char *chr_name; - - GSList *requests; } RngEgd; -typedef struct RngRequest -{ - EntropyReceiveFunc *receive_entropy; - uint8_t *data; - void *opaque; - size_t offset; - size_t size; -} RngRequest; - -static void rng_egd_request_entropy(RngBackend *b, size_t size, - EntropyReceiveFunc *receive_entropy, - void *opaque) +static void rng_egd_request_entropy(RngBackend *b, RngRequest *req) { RngEgd *s = RNG_EGD(b); - RngRequest *req; - - req = g_malloc(sizeof(*req)); - - req->offset = 0; - req->size = size; - req->receive_entropy = receive_entropy; - req->opaque = opaque; - req->data = g_malloc(req->size); + size_t size = req->size; while (size > 0) { uint8_t header[2]; @@ -64,24 +45,15 @@ static void rng_egd_request_entropy(RngBackend *b, size_t size, size -= len; } - - s->requests = g_slist_append(s->requests, req); -} - -static void rng_egd_free_request(RngRequest *req) -{ - g_free(req->data); - g_free(req); } static int rng_egd_chr_can_read(void *opaque) { RngEgd *s = RNG_EGD(opaque); - GSList *i; + RngRequest *req; int size = 0; - for (i = s->requests; i; i = i->next) { - RngRequest *req = i->data; + QSIMPLEQ_FOREACH(req, &s->parent.requests, next) { size += req->size - req->offset; } @@ -93,8 +65,8 @@ static void rng_egd_chr_read(void *opaque, const uint8_t *buf, int size) RngEgd *s = RNG_EGD(opaque); size_t buf_offset = 0; - while (size > 0 && s->requests) { - RngRequest *req = s->requests->data; + while (size > 0 && !QSIMPLEQ_EMPTY(&s->parent.requests)) { + RngRequest *req = QSIMPLEQ_FIRST(&s->parent.requests); int len = MIN(size, req->size - req->offset); memcpy(req->data + req->offset, buf + buf_offset, len); @@ -103,38 +75,13 @@ static void rng_egd_chr_read(void *opaque, const uint8_t *buf, int size) size -= len; if (req->offset == req->size) { - s->requests = g_slist_remove_link(s->requests, s->requests); - req->receive_entropy(req->opaque, req->data, req->size); - rng_egd_free_request(req); + rng_backend_finalize_request(&s->parent, req); } } } -static void rng_egd_free_requests(RngEgd *s) -{ - GSList *i; - - for (i = s->requests; i; i = i->next) { - rng_egd_free_request(i->data); - } - - g_slist_free(s->requests); - s->requests = NULL; -} - -static void rng_egd_cancel_requests(RngBackend *b) -{ - RngEgd *s = RNG_EGD(b); - - /* We simply delete the list of pending requests. If there is data in the - * queue waiting to be read, this is okay, because there will always be - * more data than we requested originally - */ - rng_egd_free_requests(s); -} - static void rng_egd_opened(RngBackend *b, Error **errp) { RngEgd *s = RNG_EGD(b); @@ -203,8 +150,6 @@ static void rng_egd_finalize(Object *obj) } g_free(s->chr_name); - - rng_egd_free_requests(s); } static void rng_egd_class_init(ObjectClass *klass, void *data) @@ -212,7 +157,6 @@ static void rng_egd_class_init(ObjectClass *klass, void *data) RngBackendClass *rbc = RNG_BACKEND_CLASS(klass); rbc->request_entropy = rng_egd_request_entropy; - rbc->cancel_requests = rng_egd_cancel_requests; rbc->opened = rng_egd_opened; } |