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invoices: Unify waitone/any waiters to invoices object.

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In preparation for removing in-memory invoice objects.
Since they will be removed, there will no longer be any
individual invoice objects to attach to.
This commit is contained in:
ZmnSCPxj 2018-02-20 01:35:50 +00:00 committed by Christian Decker
parent 9b4c6699f9
commit 7a6fe0704e
2 changed files with 64 additions and 46 deletions
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108
wallet/invoices.c
View File

@ -16,8 +16,16 @@
#include <common/utils.h>
struct invoice_waiter {
/* Is this waiter already triggered? */
bool triggered;
/* Is this waiting for any invoice to resolve? */
bool any;
/* If !any, the specific invoice this is waiting on */
u64 id;
struct list_node list;
/* The callback to use */
void (*cb)(const struct invoice *, void*);
void *cbarg;
};
@ -31,17 +39,55 @@ struct invoices {
struct timers *timers;
/* The invoice list. */
struct list_head invlist;
/* Waiters waiting for any new invoice to be paid. */
struct list_head waitany_waiters;
/* Waiters waiting for invoices to be paid, expired, or deleted. */
struct list_head waiters;
};
static void trigger_invoice_waiter(struct invoice_waiter *w,
struct invoice *invoice)
const struct invoice *invoice)
{
w->triggered = true;
w->cb(invoice, w->cbarg);
}
static void trigger_invoice_waiter_resolve(struct invoices *invoices,
u64 id,
const struct invoice *invoice)
{
const tal_t *tmpctx = tal_tmpctx(invoices);
struct invoice_waiter *w;
struct invoice_waiter *n;
list_for_each_safe(&invoices->waiters, w, n, list) {
if (!w->any && w->id != id)
continue;
list_del_from(&invoices->waiters, &w->list);
tal_steal(tmpctx, w);
trigger_invoice_waiter(w, invoice);
}
tal_free(tmpctx);
}
static void
trigger_invoice_waiter_expire_or_delete(struct invoices *invoices,
u64 id,
const struct invoice *invoice)
{
const tal_t *tmpctx = tal_tmpctx(invoices);
struct invoice_waiter *w;
struct invoice_waiter *n;
list_for_each_safe(&invoices->waiters, w, n, list) {
if (w->any || w->id != id)
continue;
list_del_from(&invoices->waiters, &w->list);
tal_steal(tmpctx, w);
trigger_invoice_waiter(w, invoice);
}
tal_free(tmpctx);
}
static bool wallet_stmt2invoice_details(sqlite3_stmt *stmt,
struct invoice *invoice,
struct invoice_details *dtl)
@ -72,7 +118,6 @@ static bool wallet_stmt2invoice_details(sqlite3_stmt *stmt,
dtl->paid_timestamp = sqlite3_column_int64(stmt, 9);
}
list_head_init(&invoice->waitone_waiters);
invoice->expiration_timer = NULL;
return true;
@ -90,7 +135,7 @@ struct invoices *invoices_new(const tal_t *ctx,
invs->timers = timers;
list_head_init(&invs->invlist);
list_head_init(&invs->waitany_waiters);
list_head_init(&invs->waiters);
return invs;
}
@ -102,7 +147,6 @@ static void trigger_expiration(struct invoice *i)
struct invoices *invoices = i->owner;
u64 now = time_now().ts.tv_sec;
sqlite3_stmt *stmt;
struct invoice_waiter *w;
assert(i->details->state == UNPAID);
@ -126,12 +170,7 @@ static void trigger_expiration(struct invoice *i)
sqlite3_bind_int64(stmt, 2, i->id);
db_exec_prepared(invoices->db, stmt);
/* Wake up all waiters. */
while ((w = list_pop(&i->waitone_waiters,
struct invoice_waiter,
list)) != NULL) {
tal_steal(tmpctx, w);
trigger_invoice_waiter(w, i);
}
trigger_invoice_waiter_expire_or_delete(invoices, i->id, i);
tal_free(tmpctx);
} else
@ -282,7 +321,6 @@ const struct invoice *invoices_create(struct invoices *invoices,
memcpy(&invoice->details->r, &r, sizeof(invoice->details->r));
memcpy(&invoice->details->rhash, &rhash, sizeof(invoice->details->rhash));
invoice->details->expiry_time = expiry_time;
list_head_init(&invoice->waitone_waiters);
invoice->expiration_timer = NULL;
/* Add to invoices object. */
@ -328,34 +366,24 @@ bool invoices_delete(struct invoices *invoices,
const struct invoice *cinvoice)
{
sqlite3_stmt *stmt;
struct invoice_waiter *w;
struct invoice *invoice = (struct invoice *) cinvoice;
const tal_t *tmpctx = tal_tmpctx(NULL);
/* Delete from database. */
stmt = db_prepare(invoices->db, "DELETE FROM invoices WHERE id=?;");
sqlite3_bind_int64(stmt, 1, invoice->id);
db_exec_prepared(invoices->db, stmt);
if (sqlite3_changes(invoices->db->sql) != 1) {
tal_free(tmpctx);
if (sqlite3_changes(invoices->db->sql) != 1)
return false;
}
/* Delete from invoices object. */
list_del_from(&invoices->invlist, &invoice->list);
/* Tell all the waiters about the fact that it was deleted. */
while ((w = list_pop(&invoice->waitone_waiters,
struct invoice_waiter,
list)) != NULL) {
/* Acquire the watcher for ourself first. */
tal_steal(tmpctx, w);
trigger_invoice_waiter(w, NULL);
}
trigger_invoice_waiter_expire_or_delete(invoices,
invoice->id, NULL);
/* Free all watchers and the invoice. */
tal_free(tmpctx);
tal_free(invoice);
return true;
}
@ -386,7 +414,6 @@ void invoices_resolve(struct invoices *invoices,
u64 msatoshi_received)
{
sqlite3_stmt *stmt;
struct invoice_waiter *w;
struct invoice *invoice = (struct invoice *)cinvoice;
s64 pay_index;
u64 paid_timestamp;
@ -418,21 +445,8 @@ void invoices_resolve(struct invoices *invoices,
invoice->details->paid_timestamp = paid_timestamp;
invoice->expiration_timer = tal_free(invoice->expiration_timer);
/* Tell all the waitany waiters about the new paid invoice. */
while ((w = list_pop(&invoices->waitany_waiters,
struct invoice_waiter,
list)) != NULL) {
tal_steal(tmpctx, w);
trigger_invoice_waiter(w, invoice);
}
/* Tell any waitinvoice waiters about the specific invoice
* getting paid. */
while ((w = list_pop(&invoice->waitone_waiters,
struct invoice_waiter,
list)) != NULL) {
tal_steal(tmpctx, w);
trigger_invoice_waiter(w, invoice);
}
/* Tell all the waiters about the paid invoice. */
trigger_invoice_waiter_resolve(invoices, invoice->id, invoice);
/* Free all watchers. */
tal_free(tmpctx);
@ -450,11 +464,15 @@ static void destroy_invoice_waiter(struct invoice_waiter *w)
/* Add an invoice waiter to the specified list of invoice waiters. */
static void add_invoice_waiter(const tal_t *ctx,
struct list_head *waiters,
bool any,
u64 id,
void (*cb)(const struct invoice *, void*),
void* cbarg)
{
struct invoice_waiter *w = tal(ctx, struct invoice_waiter);
w->triggered = false;
w->any = any;
w->id = id;
list_add_tail(waiters, &w->list);
w->cb = cb;
w->cbarg = cbarg;
@ -500,7 +518,8 @@ void invoices_waitany(const tal_t *ctx,
sqlite3_finalize(stmt);
/* None found. */
add_invoice_waiter(ctx, &invoices->waitany_waiters, cb, cbarg);
add_invoice_waiter(ctx, &invoices->waiters,
true, 0, cb, cbarg);
}
@ -517,7 +536,8 @@ void invoices_waitone(const tal_t *ctx,
}
/* Not yet paid. */
add_invoice_waiter(ctx, &invoice->waitone_waiters, cb, cbarg);
add_invoice_waiter(ctx, &invoices->waiters,
false, invoice->id, cb, cbarg);
}
void invoices_get_details(const tal_t *ctx,

2
wallet/wallet.h
View File

@ -397,8 +397,6 @@ struct invoice {
struct list_node list;
/* Database ID */
u64 id;
/* Any JSON waitinvoice calls waiting for this to be paid */
struct list_head waitone_waiters;
/* Any expiration timer in effect */
struct oneshot *expiration_timer;
/* The owning invoices object. */