108 lines
3.0 KiB
Diff
108 lines
3.0 KiB
Diff
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From 186e0ab025b9ad92d900697f611633a6f6162f3b Mon Sep 17 00:00:00 2001
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From: Panu Matilainen <pmatilai@redhat.com>
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Date: Wed, 9 Feb 2022 14:47:14 +0200
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Subject: [PATCH] Add optional callback on directory changes during rpmfi
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iteration
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Internal only for now in case we need to fiddle with the API some more,
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but no reason this couldn't be made public later.
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---
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lib/rpmfi.c | 24 ++++++++++++++++++++----
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lib/rpmfi_internal.h | 17 +++++++++++++++++
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2 files changed, 37 insertions(+), 4 deletions(-)
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diff --git a/lib/rpmfi.c b/lib/rpmfi.c
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index aec8220a3..6c631fdb5 100644
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--- a/lib/rpmfi.c
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+++ b/lib/rpmfi.c
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@@ -53,6 +53,9 @@ struct rpmfi_s {
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int intervalStart; /*!< Start of iterating interval. */
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int intervalEnd; /*!< End of iterating interval. */
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+ rpmfiChdirCb onChdir; /*!< Callback for directory changes */
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+ void *onChdirData; /*!< Caller private callback data */
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+
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rpmfiles files; /*!< File info set */
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rpmcpio_t archive; /*!< Archive with payload */
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unsigned char * found; /*!< Bit field of files found in the archive */
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@@ -298,11 +301,16 @@ rpm_count_t rpmfiDC(rpmfi fi)
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return (fi != NULL ? rpmfilesDC(fi->files) : 0);
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}
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-#ifdef NOTYET
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-int rpmfiDI(rpmfi fi)
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+int rpmfiSetOnChdir(rpmfi fi, rpmfiChdirCb cb, void *data)
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{
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+ int rc = -1;
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+ if (fi != NULL) {
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+ fi->onChdir = cb;
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+ fi->onChdirData = data;
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+ rc = 0;
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+ }
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+ return rc;
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}
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-#endif
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int rpmfiFX(rpmfi fi)
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{
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@@ -314,9 +322,17 @@ int rpmfiSetFX(rpmfi fi, int fx)
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int i = -1;
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if (fi != NULL && fx >= 0 && fx < rpmfilesFC(fi->files)) {
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+ int dx = fi->j;
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i = fi->i;
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fi->i = fx;
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fi->j = rpmfilesDI(fi->files, fi->i);
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+ i = fi->i;
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+
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+ if (fi->j != dx && fi->onChdir) {
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+ int chrc = fi->onChdir(fi, fi->onChdirData);
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+ if (chrc < 0)
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+ i = chrc;
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+ }
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}
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return i;
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}
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@@ -1682,9 +1698,9 @@ static rpmfi initIter(rpmfiles files, int itype, int link)
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if (files && itype>=0 && itype<=RPMFILEITERMAX) {
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fi = xcalloc(1, sizeof(*fi));
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fi->i = -1;
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+ fi->j = -1;
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fi->files = link ? rpmfilesLink(files) : files;
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fi->next = nextfuncs[itype];
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- fi->i = -1;
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if (itype == RPMFI_ITER_BACK) {
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fi->i = rpmfilesFC(fi->files);
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} else if (itype >=RPMFI_ITER_READ_ARCHIVE
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diff --git a/lib/rpmfi_internal.h b/lib/rpmfi_internal.h
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index dccc6ccbe..37f1d45f5 100644
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--- a/lib/rpmfi_internal.h
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+++ b/lib/rpmfi_internal.h
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@@ -13,6 +13,23 @@
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extern "C" {
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#endif
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+/** \ingroup rpmfi
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+ * Callback on file iterator directory changes
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+ * @param fi file info
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+ * @param data caller private callback data
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+ * @return 0 on success, < 0 on error (to stop iteration)
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+ */
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+typedef int (*rpmfiChdirCb)(rpmfi fi, void *data);
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+
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+/** \ingroup rpmfi
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+ * Set a callback for directory changes during iteration.
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+ * @param fi file info
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+ * @param cb callback function
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+ * @param data caller private callback data
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+ * @return string pool handle (weak reference)
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+ */
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+int rpmfiSetOnChdir(rpmfi fi, rpmfiChdirCb cb, void *data);
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+
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/** \ingroup rpmfi
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* Return file info set string pool handle
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* @param fi file info
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--
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2.41.0
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