100 lines
2.7 KiB
Diff
100 lines
2.7 KiB
Diff
diff --git a/herbe.c b/herbe.c
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index 51d3990..8bfdbc1 100644
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--- a/herbe.c
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+++ b/herbe.c
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@@ -7,7 +7,8 @@
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#include <string.h>
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#include <stdarg.h>
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#include <fcntl.h>
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-#include <semaphore.h>
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+#include <sys/ipc.h>
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+#include <sys/shm.h>
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#include "config.h"
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@@ -79,13 +80,23 @@ void expire(int sig)
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XFlush(display);
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}
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+void read_y_offset(unsigned int **offset, int *id) {
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+ int shm_id = shmget(8432, sizeof(unsigned int), IPC_CREAT | 0660);
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+ if (shm_id == -1) die("shmget failed");
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+
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+ *offset = (unsigned int *)shmat(shm_id, 0, 0);
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+ if (*offset == (unsigned int *)-1) die("shmat failed\n");
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+ *id = shm_id;
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+}
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+
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+void free_y_offset(int id) {
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+ shmctl(id, IPC_RMID, NULL);
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+}
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+
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int main(int argc, char *argv[])
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{
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if (argc == 1)
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- {
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- sem_unlink("/herbe");
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- die("Usage: %s body", argv[0]);
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- }
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+ die("Usage: %s body", argv[0]);
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struct sigaction act_expire, act_ignore;
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@@ -151,16 +162,22 @@ int main(int argc, char *argv[])
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}
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}
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- unsigned int x = pos_x;
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- unsigned int y = pos_y;
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+ int y_offset_id;
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+ unsigned int *y_offset;
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+ read_y_offset(&y_offset, &y_offset_id);
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+
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unsigned int text_height = font->ascent - font->descent;
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unsigned int height = (num_of_lines - 1) * line_spacing + num_of_lines * text_height + 2 * padding;
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+ unsigned int x = pos_x;
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+ unsigned int y = pos_y + *y_offset;
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+
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+ unsigned int used_y_offset = (*y_offset) += height + padding;
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if (corner == TOP_RIGHT || corner == BOTTOM_RIGHT)
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- x = screen_width - width - border_size * 2 - pos_x;
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+ x = screen_width - width - border_size * 2 - x;
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if (corner == BOTTOM_LEFT || corner == BOTTOM_RIGHT)
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- y = screen_height - height - border_size * 2 - pos_y;
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+ y = screen_height - height - border_size * 2 - y;
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window = XCreateWindow(display, RootWindow(display, screen), x, y, width, height, border_size, DefaultDepth(display, screen),
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CopyFromParent, visual, CWOverrideRedirect | CWBackPixel | CWBorderPixel, &attributes);
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@@ -171,9 +188,6 @@ int main(int argc, char *argv[])
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XSelectInput(display, window, ExposureMask | ButtonPress);
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XMapWindow(display, window);
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- sem_t *mutex = sem_open("/herbe", O_CREAT, 0644, 1);
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- sem_wait(mutex);
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-
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sigaction(SIGUSR1, &act_expire, 0);
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sigaction(SIGUSR2, &act_expire, 0);
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@@ -204,12 +218,11 @@ int main(int argc, char *argv[])
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}
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}
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- sem_post(mutex);
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- sem_close(mutex);
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for (int i = 0; i < num_of_lines; i++)
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free(lines[i]);
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+ if (used_y_offset == *y_offset) free_y_offset(y_offset_id);
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free(lines);
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XftDrawDestroy(draw);
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XftColorFree(display, visual, colormap, &color);
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@@ -217,4 +230,4 @@ int main(int argc, char *argv[])
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XCloseDisplay(display);
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return exit_code;
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-}
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\ No newline at end of file
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+}
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